Is there a good reason for Synology to change the support of “Unverified Drives” in DSM?

Synology has long been regarded as one of the most user-friendly and reliable NAS brands in the market, balancing intuitive software with a wide hardware range that appeals to both home and business users. However, in recent years the company has taken an increasingly controversial path by enforcing strict compatibility requirements for hard drives and SSDs. Beginning with DSM 7 and escalating into the 2025 generation of devices, Synology now only certifies and supports its own branded storage media, effectively locking out many widely used alternatives from Seagate, Western Digital, and Toshiba. While Synology positions this move as a way to ensure system stability and consistency, the decision has sparked significant backlash among users who feel restricted in their options and burdened by higher costs. As competitors expand their ecosystems with more openness and flexibility, this proprietary approach risks damaging Synology’s reputation, raising questions about whether the company has prioritized profit margins over user choice.

What is the MAIN PROBLEM(s) with this decision by Synology?

The most immediate problem with Synology’s hard drive policy is the loss of flexibility that once made their systems so appealing. For years, customers could select from a wide range of industry-standard drives from Seagate, Western Digital, or Toshiba, tailoring storage to their budget, performance requirements, or regional availability. This freedom not only allowed users to balance cost and capacity, but also gave small businesses and home enthusiasts the ability to reuse existing drives, upgrade incrementally, or take advantage of promotions from different vendors. By restricting DSM compatibility to Synology-labelled drives, that flexibility is gone. For many users outside major markets, Synology’s drives are harder to source, priced higher than the competition, or limited in available capacities. What once felt like an open platform now increasingly resembles a closed ecosystem, where users must accept the vendor’s terms even if it means compromising on affordability or performance.

Another dimension of the problem lies in how Synology has communicated these changes, which many see as evasive or disingenuous. Officially, the company justifies the restriction as a move toward greater reliability and predictable system performance. The argument is that by narrowing the range of drives tested and supported, Synology can optimize DSM to work seamlessly with drives that have firmware tailored for its environment. In practice, though, the same underlying hardware often originates from Seagate or Toshiba, with only minor firmware adjustments and new branding. This creates a perception that Synology is overstating the technical benefits while quietly using the policy to secure higher margins. For long-time users, the contrast is stark: older models happily ran third-party drives with few issues, which makes the sudden insistence on “certification” seem less like an engineering requirement and more like a business maneuver. The result has been a significant erosion of trust between the company and its community.

The wider impact of this strategy has also been felt across the storage industry. Resellers have reported declining sales of Synology’s Plus series devices as customers explore alternatives such as QNAP, TrueNAS, or newer entrants like UGREEN and UniFi. For Synology, this shift is particularly damaging because its reputation has historically rested on attracting less technical buyers who value simplicity and reliability over DIY solutions. Now, even these entry-level and mid-range users are questioning whether they should commit to an ecosystem that limits their choice of drives and increases their costs. At the same time, hard drive manufacturers like Seagate and Western Digital are also affected, as Synology’s decision reduces the number of channels through which their products reach end customers. The ripple effect is therefore twofold: Synology risks alienating its base of loyal customers, while storage vendors lose a once-reliable partner, creating tension that could ultimately push more buyers toward competing NAS brands.

How Can Synology Solve This (if they want to)?

One path forward for Synology would be to adopt a hybrid compatibility model, where its own branded drives remain the recommended or default choice but third-party alternatives are still officially supported. This compromise has been proven by other vendors such as UniFi and QNAP, who sell their own labelled drives while maintaining compatibility lists for major manufacturers like Seagate, Western Digital, and Toshiba. By following this model, Synology could continue promoting the reliability benefits of its branded hardware without alienating customers who prefer flexibility. In practice, this would preserve a sense of choice for users while ensuring Synology can still highlight its “optimized” solutions as the safer, supported route.

Finally, Synology could address the availability and pricing concerns around its own branded drives. In many regions, these drives are either difficult to source or significantly more expensive than equivalent Seagate or Western Digital models. Improving distribution channels, ensuring consistent stock, and narrowing the price gap would make the transition more palatable to users who are willing to adopt Synology’s ecosystem but feel penalized by limited access. By focusing on accessibility and fairness rather than exclusivity, Synology could rebuild goodwill while still driving revenue from its hardware strategy. Taken together, these steps would not fully reverse the controversy but would demonstrate responsiveness and provide a clearer path to balancing stability, customer choice, and profitability.

Is there a way to FORCE a Synology NAS to accept unverified Hard Drives and SSDs in DSM?

For users unwilling to accept Synology’s restrictive stance on storage media, the community has developed reliable workarounds that re-enable full functionality for third-party hard drives and SSDs. The most widely adopted method involves injecting a script into the NAS system that bypasses DSM’s compatibility database, allowing otherwise unsupported drives to be used for installation, storage pools, caching, and expansion. Synology’s 2025 Plus-series models, such as the DS925+, block DSM installation if only unverified drives are present and issue constant warnings in Storage Manager. To overcome this, users first employ a Telnet-based flag during initial setup that tricks DSM into accepting the installation, followed by a more permanent fix applied through SSH. At the heart of this solution is Dave Russell’s (007revad) GitHub project Synology_HDD_db, which modifies DSM’s internal drive compatibility files. Once downloaded and executed via SSH, the script detects the NAS model, DSM version, and connected drives, then patches the system to treat them as officially supported.

The process is reversible, non-destructive, and works across multiple DSM versions, including DSM 7.2 and later. Additional features allow removal of persistent warning banners, full use of NVMe drives as storage volumes, and optional disabling of intrusive monitoring services like WDDA. To ensure ongoing stability, users can also configure a scheduled task in DSM’s Task Scheduler that re-applies the script at every boot, guaranteeing compatibility survives updates, reboots, or new drive insertions. While the script is robust and actively maintained, there are clear disclaimers: using it involves modifying system files, may void official Synology support, and should only be attempted by users confident with SSH and terminal commands who have reliable data backups. Nonetheless, for advanced users, system integrators, and enthusiasts, this community-driven solution has become the de facto method of restoring the freedom to use affordable and widely available third-party drives in modern Synology NAS systems.

Example of a 30TB Seagate HDD visible and functioning inside a Synology DS925+

Note – You can follow my guide on how to use this script modification (as well as outlining the pros and cons) HERE on the blog, or watch the video below:

The Future of Synology in the eyes of new and old buyers?

Synology’s decision to enforce exclusive support for its own branded hard drives and SSDs marks one of the most controversial shifts in the company’s history, transforming how both long-time customers and potential buyers view the brand. For over a decade, Synology’s appeal rested on a combination of intuitive software, solid hardware, and flexibility in allowing users to choose their own storage media from trusted vendors like Seagate, Toshiba, and Western Digital. By removing that choice in the 2025 generation, Synology has fundamentally altered the value proposition of its systems, making them appear less like open storage platforms and more like tightly controlled appliances. While the company justifies the policy by citing stability, predictability, and reduced support overhead, many users interpret it as a profit-driven attempt to push proprietary drives into the market, especially since these are often rebranded versions of third-party disks with modified firmware and higher price tags.

The backlash has been considerable, with resellers and community forums reporting falling interest in Synology’s Plus-series devices, particularly among home and small business users who previously embraced them for affordability and ease of expansion. Competing NAS providers such as QNAP, TrueNAS, UGREEN, and UniFi have been quick to capitalize on the discontent, positioning themselves as more open alternatives that maintain compatibility with industry-standard drives. At the same time, the growth of unofficial solutions like Dave Russell’s compatibility script demonstrates how determined users are to regain control over their hardware, even at the risk of voiding warranty or stepping outside official support. This dynamic reflects a widening gap between Synology’s official direction and the needs of its customer base, many of whom would prefer to accept a disclaimer about using unverified drives rather than being forced into a closed ecosystem.

Ultimately, Synology now stands at a crossroads that will define its reputation in the storage industry for years to come. If it continues to double down on a closed, proprietary model, the company may secure short-term revenue through drive sales but risks long-term damage to its image and market share. On the other hand, reintroducing a more flexible, transparent approach—such as allowing user consent for unsupported drives or improving global pricing and availability of its own disks—could restore trust and preserve its standing as the NAS brand of choice for both novices and professionals. The availability of community workarounds ensures that frustrated users are not entirely locked out of their systems, but the very existence of these tools highlights how far Synology has drifted from its once customer-first ethos. The next few years will be crucial, as the company either adjusts course and strikes a balance between profitability and user freedom, or risks ceding ground to rivals who are eager to embrace the openness Synology has chosen to leave behind.

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Synology DS1825+ vs UGREEN DXP8800 PLUS NAS – Which Should You Buy?

In 2025, the market for high-capacity 8-bay NAS systems has become more competitive than ever, with traditional leaders like Synology now facing serious contenders from newer brands such as UGREEN. The Synology DS1825+ represents the company’s latest flagship in the Plus series, incorporating a more restrictive hardware ecosystem and a focus on long-term software support, surveillance integration, and backup solutions. In contrast, the UGREEN DXP8800 Plus leans heavily into raw hardware capability and customization, offering an unlocked platform for power users and DIY enthusiasts.

This head-to-head comparison explores both systems in terms of design, internal specifications, external connectivity, operating systems, and service ecosystems. Beyond surface specs, we’ll also assess real-world usability, third-party compatibility, and the broader implications of each system’s approach to expansion and user control. Whether you’re choosing a NAS for Plex, virtual machines, business continuity, or scalable 10GbE storage, this article aims to clarify which of these two NAS units better fits different user scenarios in 2025 and beyond.

Check Amazon for the Synology DS1825+ $1149.99	Check AliExpress for the Synology DS1825+ $1149	Check Amazon for the UGREEN DXP8800 Plus $1349.99	Check AliExpress for the UGREEN DXP8800 PLUS  $1149

Quick Summary of the Synology DS1825+ NAS

Synology DS1825+ NAS Review HERE

The Synology DS1825+ is an 8-bay desktop NAS that marks a significant shift in the company’s approach to hardware and compatibility. Equipped with the AMD Ryzen Embedded V1500B processor—a 4-core, 8-thread chip running at 2.2GHz —this system balances power efficiency with performance across general file operations, virtualization, and media hosting. It includes support for up to 32GB of ECC DDR5 memory (2x SODIMM, arriving with 8GB by default), two M.2 NVMe slots for Synology-only SSD caching, and an onboard 10GbE port alongside three USB 3.2 Gen 1 ports. However, Synology’s controversial locked ecosystem continues here, restricting users to only Synology-branded drives for full support and access to storage pools, along with limited use of the NVMe bays strictly for cache, not storage.

While its internal hardware is more capable than previous Plus series models, the DS1825+ removes several features seen in past units. By default, it arrives with 2x 2.5GbE network ports, with the option to scale upto 10GbE with the use of a 1st party upgrade PCIe card, but at this pricepoint many users wuld expect 10GbE as standard. The shift to DSM 7.2 brings a refined software experience, including native Active Backup for Business, Hyper Backup, Surveillance Station, and full Docker support. However, DSM’s increasing reliance on Synology’s own hardware and subscription services, such as C2 Surveillance Proxy and Synology Drive Server, makes it harder for users to customize or expand without sticking to Synology’s ecosystem. Overall, the DS1825+ is best suited for users who want an integrated, secure, and reliable NAS experience with minimal manual setup, provided they are comfortable with the tighter hardware constraints.

Quick Summary of the UGREEN DXP8800 PLUS NAS

UGREEN DXP8800 PLUS NAS Review HERE

The UGREEN DXP8800 Plus is an 8-bay NAS solution that positions itself as a powerful, open-platform alternative for users seeking greater control over hardware and software customization. At the heart of the system is the 8-core, 16-thread Intel Core i5-1235U processor, paired with 8GB of DDR5 memory (expandable up to 64GB), but lacks support for ECC memory. Unlike its Synology counterpart, the DXP8800 Plus supports a much wider range of third-party hard drives and SSDs, and offers 2x Gen 4×4 M.2 NVMe slots that can be used not only for cache but also for primary or tiered storage, depending on the user’s operating system. This flexibility is backed by a user-serviceable layout and BIOS access, which allows full compatibility with alternative NAS OS options such as TrueNAS SCALE, UnRAID, or OpenMediaVault.

Connectivity is another area where the DXP8800 Plus stands out. It features two native 10GbE (RJ45) ports, two 2.5GbE ports, and dual USB4/Thunderbolt 4 ports, dramatically expanding external storage, docking, and display capabilities. This, combined with onboard HDMI output and front-accessible USB 3.2 ports, makes it far more versatile for media creation, backup workflows, and even lightweight workstation use. However, the DXP8800 Plus does not come with a polished first-party NAS operating system—UGREEN’s UGOS Pro remains in early stages, and lacks many of the mature backup, surveillance, and cloud services found in DSM. As such, the DXP8800 Plus is ideal for tech-savvy users who value open architecture, higher hardware flexibility, and self-managed software ecosystems over out-of-the-box turnkey simplicity.

Synology DS1825+ vs UGREEN DXP8800 PLUS NAS – Design and Storage

The Synology DS1825+ maintains the familiar chassis style used in the Plus series, combining functionality with conservative aesthetics. It features a full-sized 8-bay front panel with lockable trays, designed for tool-less insertion of 3.5” SATA drives and optional 2.5” adapters. The main body is a mix of steel and plastic, with a focus on rigidity and reduced vibration. The system lacks any onboard display or LCD, offering only basic LED indicators for system status, drive activity, and alerts, which may frustrate users seeking at-a-glance diagnostics. Access to internal components like the DDR5 ECC RAM and dual M.2 NVMe slots requires removing the top cover and internal caddy brackets, which isn’t as straightforward as it could be—especially given that the NVMe slots are only usable for cache and require Synology-branded drives. Thermal management relies on dual 120mm rear-mounted fans, which operate quietly but are non-replaceable without voiding warranty due to the proprietary fan harness. Physically, the NAS is slightly larger than competing 8-bay units and lacks rubberized feet or vibration isolation, which may be relevant for users placing it on shared work surfaces or desks.

The UGREEN DXP8800 Plus delivers a contrasting design focused on space efficiency, cooling, and user-accessibility. The NAS is housed in a durable metal shell with perforated side panels and a high-density internal structure. Despite its smaller footprint, it manages to accommodate eight SATA bays, two 4X4 M.2 NVMe slots, two SODIMM slots, and active cooling—all while remaining user-serviceable with just a standard screwdriver. The hot-swap trays are spring-loaded and support tool-less 3.5” drives or 2.5” drives via included screws. Access to RAM and SSD slots is streamlined through a simple internal partition design that doesn’t require full disassembly, making upgrades significantly faster than on the DS1825+. The rear exhaust fan is larger than expected for a device this compact, and although thermals are generally within acceptable limits, our testing showed that M.2 SSDs running at PCIe Gen 3 speeds did reach over 65°C during sustained I/O, especially when mounted without aftermarket heatsinks. Unlike Synology, UGREEN includes front-mounted USB 3.2 Gen 2 ports (Type-A and Type-C), ideal for creators and users who frequently move large projects or footage onto the system using direct-attached storage.

When it comes to storage flexibility, the differences are stark. Synology’s DS1825+ enforces a strict hardware compatibility policy, where only Synology-certified HDDs (such as the HAT5300) and SSDs (SAT5200 or SNV3410/3510) are officially supported. Drives outside this list may trigger warnings, be ineligible for pools, or lose access to SMART health readings. NVMe drives cannot be used for storage volumes at all and are locked to caching roles only. These restrictions are enforced by DSM 7.2+ and persist even with the system fully updated.

By contrast, the UGREEN DXP8800 Plus places no such limits. Any SATA or NVMe drive can be used, and users can create pools across mixed-capacity and mixed-brand disks, including enterprise-grade drives. Storage volumes can be configured freely in supported OS environments, and the two M.2 slots can act as primary storage, tiered ZFS vdevs, or cache depending on the OS—TrueNAS SCALE, for instance, recognized all M.2 drives and allowed custom pool creation without issue. This makes UGREEN’s system more attractive to users with existing drives or specific ZFS/Btrfs layouts in mind.

Synology DS1825+ vs UGREEN DXP8800 PLUS NAS – Internal Hardware

he Synology DS1825+ is built around the AMD Ryzen V1500B processor, a 4-core, 8-thread embedded SoC designed specifically for NAS and server workloads. With a fixed base clock of 2.2GHz and no boost functionality, this Zen-based CPU focuses on stability, multi-threaded efficiency, and low power consumption, making it well-suited for consistent background operations like file serving, multi-client backups, and large-scale storage array management. The chip includes AES-NI support for hardware encryption acceleration and offers full compatibility with DSM’s virtualization stack, including Docker and Synology’s Virtual Machine Manager. However, the V1500B lacks an integrated GPU, and the DS1825+ does not support hardware transcoding, making it unsuitable for Plex or media applications that rely on real-time video encoding unless offloaded to cloud services like Synology C2. It’s a reliable and mature processor choice, albeit one that prioritizes stability over flexibility or raw speed.

The DS1825+ ships with 8GB of ECC DDR4 memory (1x SODIMM) installed, with support for up to 32GB across two slots, and ECC is supported on both official and some compatible third-party modules. The internal layout, however, is relatively restrictive. The memory and M.2 slots require tray removal and partial disassembly to access. Synology includes two M.2 NVMe slots that operate at PCIe Gen 3×4, but DSM only allows them to be used for read/write caching and only with Synology SNV3410 or SNV3510 SSDs. These slots are not available for storage pool creation or system boot, regardless of the SSD used. There is no PCIe slot or BIOS access, making this a closed system that enforces Synology’s validation model tightly. While this approach ensures stability, it limits performance tuning and locks users into higher-priced branded components.

The UGREEN DXP8800 Plus uses an Intel Core i5-1235U, a hybrid 10-core (2 performance, 8 efficiency), 12-thread mobile CPU built on the Alder Lake-U architecture. With a boost clock up to 4.4GHz and integrated Intel Xe graphics, it offers both multi-threaded efficiency and hardware video transcoding support via Quick Sync. This is ideal for users running Plex, Jellyfin, or AI-based video analysis locally. The system ships with 8GB of non-ECC DDR4 memory, expandable to 64GB, using standard SODIMM slots. UGREEN’s internal board features 2x M.2 NVMe slots operating at PCIe Gen 4×4 speeds, offering significantly more bandwidth than Synology’s Gen 3 slots. These SSDs can be used for boot, storage pools, or cache, and the system supports a wide range of third-party drives without warnings or restrictions. BIOS access is fully available, allowing installation of operating systems like TrueNAS, UnRAID, or Proxmox. UGREEN’s internal hardware favors openness and customizability, providing users with direct control over performance, expansion, and component choice—at the cost of requiring more technical expertise.

Synology DS1825+ vs UGREEN DXP8800 PLUS NAS – Ports and Connections

The Synology DS1825+ delivers a modest and business-focused range of connectivity options, designed primarily for reliability and integration within an IT-managed environment. It includes 2x 2.5GbE RJ-45 LAN ports, offering basic link aggregation or dual-network failover functionality. While this offers faster-than-Gigabit throughput, the lack of 10GbE out of the box may be limiting for users working with large media files or virtualization workloads, particularly in comparison to other 2025 systems.

The system provides 3x USB 3.2 Gen 1 (5Gbps) Type-A ports, all located on the rear, suitable for UPS integration, external storage, or compatible backup devices. In terms of expansion, Synology includes 2x USB Type-C ports, but these are reserved exclusively for connecting official DX525 expansion units. They do not support data transfer, peripherals, or USB-C accessories and serve only as proprietary expansion interfaces. No HDMI, DisplayPort, or audio outputs are included, and there is no SD card reader. This reinforces Synology’s design philosophy: operate headlessly, manage remotely, and keep the system within the bounds of their validated ecosystem.

In contrast, the UGREEN DXP8800 Plus positions itself as a fully-featured, hybrid-use NAS platform with wide-ranging I/O options for prosumers and professionals. It features 2x 10GbE RJ-45 LAN ports—a clear advantage over Synology’s 2.5GbE setup—offering significantly more bandwidth for media editing, VM hosts, or multi-user environments. On the front, UGREEN includes 2x Thunderbolt 4 (40Gbps) ports, which double as high-speed USB-C for peripherals, external drives, or even eGPU enclosures in supported OS setups. The rear provides 2x USB-A ports at 10Gbps, plus 2x USB 2.0 ports, allowing backward-compatible peripheral support. For display, the system includes 1x HDMI port with 8K output support, connected via Intel’s Xe iGPU, as well as a high-speed SD 4.0 card reader—a particularly valuable addition for content creators offloading camera media directly to the NAS. There is also a PCIe x4 slot for optional hardware expansion. This broad I/O layout enables the DXP8800 Plus to function as a headless NAS, a media server, or even a workstation replacement, depending on the OS you choose to run.

The gap in connectivity between these two NAS systems reflects their broader design philosophies. Synology has deliberately kept the DS1825+ minimal, standardized, and tightly integrated with its ecosystem, which enhances long-term support and serviceability but limits flexibility. UGREEN, on the other hand, offers extensive general-purpose ports that cater to a wider range of workflows—especially for users running Windows, Proxmox, TrueNAS, or virtualized environments. Whether it’s direct media ingestion via SD card, high-speed expansion through Thunderbolt, or dual 10GbE networking, the DXP8800 Plus outpaces the DS1825+ in almost every I/O category. However, this flexibility comes with the expectation that the user is comfortable with open-platform system management and a DIY-style deployment model.

Synology DS1825+ vs UGREEN DXP8800 PLUS NAS – Software and Services

The Synology DS1825+ runs on DSM 7.2, Synology’s mature and widely respected NAS operating system. DSM offers a broad ecosystem of native applications and services, including advanced storage management, multi-tiered backup solutions, virtual machine hosting, and comprehensive multimedia support. Key built-in tools such as Synology Drive, Hyper Backup, Active Backup for Business, Surveillance Station, and Synology Photos provide enterprise-grade data handling in a highly polished interface.

DSM also includes Snapshot Replication with Btrfs, granular folder/file-level restore, and Active Directory integration. Importantly, DSM supports features like Windows ACL permissions, Samba v4, WORM file locking, and two-factor authentication by default, with Synology’s C2 platform offering cloud sync, identity management, and secure backup options. However, DSM has increasingly tied deeper functionality (e.g., certain security tools and snapshots) to Synology-branded storage and expansion hardware, with third-party drive warnings now appearing by default.

UGREEN’s DXP8800 Plus runs UGOS Pro, a Linux-based operating system developed in-house. Now one year into active deployment, UGOS Pro has matured substantially with ongoing updates and wider feature support. The interface is clean and web-accessible, and recent updates have added core NAS functions previously missing. As of the latest firmware, Docker, virtual machine creation, and Jellyfin media server are all natively supported via one-click installs.

Importantly, iSCSI support was also added, addressing a key omission for enterprise or VMware users. 2-factor authentication (2FA) is now present, and security protocols include IP/MAC-level blocking, custom firewall rules, and access control policies. While UGREEN still lacks the depth of anti-ransomware protection found in DSM or QNAP’s QuFirewall, the fundamentals have improved dramatically. Local-only AI services for photo indexing and object recognition have also been refined, with user-selectable models running without internet access.

Where DSM excels in deep integration and business-class reliability, UGOS Pro stands out for its openness and responsiveness to user feedback. Users can enable SSH, customize OS-level settings, and even install TrueNAS, UnRAID, or Proxmox without voiding the warranty, as UGREEN has opted for an open-platform approach.

UGOS also supports Windows file services (SMB), NFS, and web-based file managers, though its permissions system and UI are still somewhat basic compared to DSM. Synology’s first-party software tends to offer higher polish, more documentation, and broader cross-platform support, particularly in cloud-integrated services, whereas UGOS is catching up in functional breadth but remains relatively limited in automation and long-term software ecosystem depth.

Both platforms include mobile apps and browser-based remote access, but Synology’s remote access via QuickConnect is significantly more user-friendly and secure out-of-the-box, while UGREEN’s remote services are best replaced or supplemented by Tailscale, Cloudflare Tunnel, or similar tools. Synology’s Surveillance Station also has years of development behind it with support for hundreds of IP cameras, whereas UGREEN does not yet include native surveillance software in UGOS Pro.

For users seeking a media-focused setup, UGOS offers a good local multimedia experience via Jellyfin, while DSM supports Plex and Video Station (with transcoding limitations depending on CPU). Ultimately, Synology’s DSM remains the more robust, enterprise-ready option, while UGOS Pro presents a highly promising and increasingly competitive open alternative that still favors self-managed users.

Synology DS1825+ vs UGREEN DXP8800 PLUS NAS – Verdict and Conclusion

The Synology DS1825+ remains a compelling choice for users prioritizing reliability, software integration, and long-term support. With the proven DSM 7.2 platform, it offers enterprise-grade tools for file management, backup, virtual machines, and surveillance. Features like Snapshot Replication, C2 cloud integration, and Active Backup for Business provide peace of mind for professionals who want a turnkey experience with minimal maintenance. Although hardware specs such as the Ryzen V1500B CPU and dual 2.5GbE ports might seem modest compared to rivals, they are more than adequate for office environments, multi-user file sharing, and even light virtualization. That said, its increasing reliance on Synology-branded drives and accessories, as well as its lack of GPU support and M.2 NVMe flexibility, could be frustrating for DIY enthusiasts or media-focused users.

By contrast, the UGREEN DXP8800 Plus is a hardware-forward NAS that emphasizes performance, bandwidth, and customization. With a 12-core Intel Core i5-1235U CPU, dual 10GbE, PCIe expandability, and full-speed Gen 4 NVMe slots, it is built for workloads that demand raw power—media servers, high-speed backups, AI indexing, and even containerized apps via Docker. UGOS Pro has matured considerably over the last year, with new features like iSCSI, 2FA, VM hosting, and Jellyfin support making it much more viable than at launch. Still, while UGREEN’s open architecture and wider SSD/drive compatibility are a strength, its software ecosystem isn’t yet as refined or battle-tested as Synology’s DSM, especially for more security-sensitive or compliance-bound environments. Surveillance features and enterprise-level monitoring tools are also still missing or immature in comparison.

In short, the Synology DS1825+ is best suited for SMBs, IT administrators, or content creators who want a dependable, low-maintenance NAS with rich native features and strong vendor support, especially where third-party remote access is limited or not desired. On the other hand, the UGREEN DXP8800 Plus is ideal for prosumers, media professionals, and tech-savvy users who want maximum hardware flexibility, faster internal/external transfer speeds, and the freedom to customize their NAS at the OS level, even if that means dealing with a slightly rougher software experience. If ease of use, documentation, and long-term stability are your priorities, the DS1825+ remains a safe bet. But if you’re looking for value in performance per dollar, more openness, and higher bandwidth potential, the DXP8800 Plus offers a lot for the price.

PROS	CONS	PROS	CONS
DSM 7.2 OS offers mature, stable, and feature-rich ecosystem with professional backup, replication, and VM tools. ECC DDR4 Memory (8GB expandable to 32GB) ensures greater data integrity and system stability. Broad software support including Surveillance Station, Active Backup, C2 Hybrid Cloud, and Hyper Backup. PCIe Gen3 slot allows for 10GbE or 25GbE network expansion or M.2 cache via supported adapters.   Low noise and power efficiency (~23.8 dB, ~60W during access), making it suitable for office environments.	Limited M.2 NVMe support (Gen3x4, only Synology-branded SSDs officially supported). No built-in GPU or transcoding support, limiting suitability for Plex or media conversion workflows.   Locks users into Synology drives/accessories, reducing flexibility and increasing costs over time.	High-performance Intel Core i5-1235U CPU (12-core, 10-thread) enables heavy multitasking, VMs, and AI workloads. Dual 10GbE LAN ports allow for ultra-fast network throughput and multi-client simultaneous access. Two M.2 NVMe Gen4x4 slots support broad range of SSDs for caching or fast storage pools. 64GB DDR5 upgrade support offers excellent memory headroom for Docker, virtualization, and AI indexing.   UGOS Pro now includes Jellyfin, Docker, VMs, iSCSI, and 2FA, closing many early software gaps.	UGOS Pro still lacks polished UI/UX compared to DSM; some features buried or poorly documented. No official Plex support and limited surveillance tools, weakening multimedia and NVR potential.   Brand trust and software maturity still lag behind market leaders like Synology or QNAP.
Check Amazon for the Synology DS1825+ $1149.99	Check AliExpress for the Synology DS1825+ $1149	Check Amazon for the UGREEN DXP8800 Plus $1349.99	Check AliExpress for the UGREEN DXP8800 PLUS  $1149

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Use Whatever Hard Drives or SSDs on Your Synology NAS (2025 Guide)

Note – there is a YouTube tutorial version of this guide HERE on the NASCompares YouTube Channel

Synology’s 2025 generation of NAS systems, such as the DS925+ and other Plus series models, introduced a more restrictive approach to drive compatibility. Unlike previous generations, these devices enforce a compatibility check that blocks or limits functionality when non-Synology hard drives or SSDs are used. As a result, users are unable to install DSM, create storage pools, or configure caching volumes using unverified drives. Even drives that work in earlier Synology models are now flagged as unsupported, resulting in persistent alerts or outright refusal to function. This guide provides a complete walkthrough for users who want to bypass those restrictions and enable full usage of third-party SATA and NVMe drives, including for pools, volumes, hot spares, and cache. It includes step-by-step instructions on how to install DSM with only unverified drives, how to remove system warnings, and how to automate the process for future updates or drive additions. The solutions here rely on trusted scripts developed by the Synology community and require minimal system modification, allowing users to regain control over their own hardware.

Special Thanks to Dave Russell

The ability to bypass Synology’s restrictive drive compatibility checks would not be possible without the extensive work of Dave Russell, widely known in the Synology community as 007revad. His GitHub project, Synology_HDD_db, is the basis for all the procedures outlined in this guide. The script he developed modifies DSM’s internal compatibility database, enabling full functionality for otherwise unsupported HDDs, SSDs, and NVMe drives. Dave has not only written and maintained this complex script, but also ensured that it works across different NAS models and DSM versions, including DSM 7.2 and newer. He continues to improve the tool in response to Synology firmware changes, regularly providing updates and extended options such as M.2 volume support and WDDA disablement. Users are strongly encouraged to consult the official GitHub repository, follow the provided documentation, and, where possible, support his ongoing work HERE, which remains freely available to the broader NAS community.

MASSIVE Disclaimer

Modifying your Synology NAS to allow the use of unverified drives is not officially supported by Synology. By applying the changes described in this guide, you will be altering system files and bypassing built-in compatibility checks within DSM. While these changes are reversible and have been widely tested, doing so may void your Synology warranty or affect your ability to receive technical support from the manufacturer, even in cases unrelated to storage. Additionally, although the script-based method described here is non-destructive and has proven safe for many users, there is always a minimal risk of issues following DSM updates or hardware changes. You should not proceed unless you have full backups of your data and are comfortable with SSH and terminal operations. This guide is intended for advanced users, system integrators, or home NAS enthusiasts who understand the risks and accept responsibility for operating outside of official Synology support channels.

How to Set Up a Synology NAS with No Drives Installed to Allow DSM Installation

Synology’s 2025 and later Plus-series NAS systems will not allow DSM installation if only unverified drives are present. However, it is possible to bypass this limitation and install DSM without using any Synology-branded or officially supported drives. The method involves enabling Telnet access and overriding the drive compatibility check during the DSM installation process.

Step-by-Step Instructions:

• Physically set up your NAS

  • Connect the NAS to your local network using Ethernet.

  • Ensure the device is powered on, even if no drives are installed or only unverified drives are present.

• Attempt initial DSM setup

  • Use Synology Assistant or go to http://find.synology.com to locate your NAS.

  • Proceed through the DSM installation wizard. You will likely encounter an error indicating that the inserted drive(s) are unsupported.

• Enable Telnet access

  • In a browser, navigate to:
    http://<NAS-IP>:5000/webman/start_telnet.cgi
    Replace <NAS-IP> with the actual IP address of your NAS.

• Connect via Telnet

  • Open a Telnet client like PuTTY.

  • Enter your NAS IP address and connect via Telnet.

  • When prompted, use:

    • Username: root

    • Password: 101-0101 (default for this Telnet interface)

• Bypass installation check

  • Enter the following command into the Telnet window:

    while true; do touch /tmp/installable_check_pass; sleep 1; done


  • This creates a temporary flag that bypasses the system’s compatibility verification loop.

• Return to the DSM install page

  • Refresh the browser window where you began the DSM setup.

  • DSM will now allow installation to proceed, even on unverified drives.

• Finish DSM setup

  • Complete the DSM installation.

  • Create your admin user account when prompted.

  • You can now access the full DSM interface.

Once DSM is installed, you can proceed to apply the permanent drive compatibility fixes, create storage pools, and remove warning banners—all covered in the next section.

How to Allow Unverified HDDs or SSDs to Be Used for Storage Pools, Volumes, and Caching (and Remove Warnings)

Once DSM is installed, unverified drives will still be blocked from creating storage pools, volumes, or caches. Even if the system boots, Storage Manager will display warnings or greyed-out options. To unlock full functionality, you must apply a community-developed script that updates DSM’s internal drive compatibility database. This section outlines how to download, apply, and validate that change.

Step-by-Step Instructions:

• Enable SSH on your NAS
  • In DSM, go to Control Panel > Terminal & SNMP > Terminal.
  • Enable SSH service and click Apply.

• Prepare SSH access
  • Use PuTTY (or your preferred SSH client) to connect to your NAS.
  • Log in using your DSM administrator username and password (not root at this stage).
• Create working directory
  • Once connected, elevate to root:

    sudo -i
    

  • Create the required folder:

    mkdir -m775 /opt
    cd /opt
    

• Download the required scripts
  • Run the following commands to download the latest versions directly from Dave Russell’s GitHub:

    curl -O "https://raw.githubusercontent.com/007revad/Synology_HDD_db/refs/heads/main/syno_hdd_db.sh"
    curl -O "https://raw.githubusercontent.com/007revad/Synology_HDD_db/refs/heads/main/syno_hdd_vendor_ids.txt"
    chmod 750 /opt/syno_hdd_db.sh
    

• Run the script
  • Execute the script to patch the drive database:

    /opt/syno_hdd_db.sh
    

  • The script will detect your NAS model, DSM version, and connected drives. It will then add those drives to the compatibility database and back up the original files.

• Check Storage Manager
  • Return to DSM’s Storage Manager.
  • If changes are not immediately visible, reboot your NAS.
  • You should now be able to create storage pools, volumes, and SSD caches with unverified drives, without warning messages.
• Optional: Disable compatibility warnings completely
  • To stop future drive alerts from DSM, you may also want to run:

    /usr/syno/bin/synosetkeyvalue /etc.defaults/synoinfo.conf support_disk_compatibility no
    

At this point, all third-party drives currently installed in the system will be fully usable and recognized as supported. The next section explains how to add additional unverified drives later and have them automatically accepted.

What to Do When Adding New HDDs or SSDs Later for Expansion, Replacement, or Hot Spares

After your initial setup and database modification, any newly added unverified drives will still appear as unsupported in DSM until they are explicitly added to the modified compatibility database. This section outlines how to safely introduce new drives for RAID expansion, hot spare assignment, or disk replacement without encountering blockages or warning messages.

Step-by-Step Instructions:

• Physically install the new drive(s)
  • Power down your NAS if required (for systems that don’t support hot-swapping).
  • Insert the new unverified HDDs or SSDs into available bays.
  • Power the NAS back on and log in to DSM.
• Check Storage Manager
  • Go to Storage Manager > HDD/SSD.
  • Newly added drives will appear but will be marked as “Not supported” or “Unverified.”
  • They will not be usable for volume expansion or as hot spares until added to the compatibility list.
• Reconnect via SSH
  • Use PuTTY or your SSH client to log into DSM with your admin credentials.
  • Elevate to root access:

    sudo -i
    

• Navigate to the working directory
  • Assuming you previously created /opt and stored the script there:

    cd /opt
    

• Run the update script again
  • This re-applies the database patch and includes newly inserted drives:

    ./syno_hdd_db.sh

1. Verify drive status
   • Go back to Storage Manager.
   • Refresh the page or reboot the NAS if needed.
   • The newly added drives should now appear as compatible and can be used for expansion, drive replacement, or assigned as hot spares.

This process can be repeated anytime new unverified drives are introduced. However, to avoid having to manually re-run the script every time, the next section covers how to set up a scheduled task that automates this during every system boot.

How to Set Up a Scheduled Task to Re-Apply the Fix on Every Reboot

Synology DSM updates or certain system operations can overwrite or reset the internal compatibility database, especially after version upgrades or service restarts. To ensure that unverified drives remain recognized and fully functional even after a reboot, you can configure a scheduled task that automatically re-applies the compatibility script at every startup.

Step-by-Step Instructions:

• Log in to DSM and open Task Scheduler
  • Go to Control Panel > Task Scheduler.
  • Click Create > Triggered Task > User-defined script.
• Configure the general settings
  • Task Name: Name it something descriptive like Drive Compatibility Patch.
  • User: Select root from the dropdown (this is essential for full system access).
  • Event: Select Boot-up so the script runs every time the NAS starts.
  • Leave Enabled checked.

• Set the script action
  • Click on the Task Settings tab.
  • In the User-defined script box, enter the following command:

    mkdir -m775 /opt
    cd /opt || (echo "Failed to CD to /opt"; exit 1)
    curl -O "https://raw.githubusercontent.com/007revad/Synology_HDD_db/refs/heads/main/syno_hdd_db.sh"
    curl -O "https://raw.githubusercontent.com/007revad/Synology_HDD_db/refs/heads/main/syno_hdd_vendor_ids.txt"
    chmod 750 /opt/syno_hdd_db.sh
    /opt/syno_hdd_db.sh -e
    

  • This ensures the script is always downloaded fresh and applied with the -e flag for compatibility with scheduled tasks and email output (if enabled).
• Optional email notifications
  • Still under Task Settings, you can enable email alerts to be notified if the script fails or terminates abnormally.
• Save and test
  • Click OK to save the task.
  • You can manually run the task to confirm it executes correctly.
  • Reboot the NAS to ensure the script is applied at boot and unverified drives remain fully usable.

This scheduled task ensures long-term reliability and reduces the need for manual intervention whenever DSM is restarted, updated, or new drives are introduced.

Synology’s decision to restrict drive compatibility in its 2025 and later NAS models has complicated matters for users who prefer flexibility in their storage choices. However, through a combination of Telnet access, SSH scripting, and community-built tools like Dave Russell’s syno_hdd_db.sh, it is entirely possible to restore full drive functionality—even when using completely unverified SATA or NVMe devices. By following the steps outlined in this guide, users can install DSM on unverified drives, create storage pools, use SSDs for caching, and expand or modify their RAID configurations without limitations. Setting up an automated scheduled task further ensures these capabilities persist through reboots and DSM updates. While Synology may eventually broaden official support, this method provides a reliable and reversible way to maintain full control over your hardware today.

Should You Buy the Synology DS925+ NAS?

In practical terms, the DS925+ is the stronger out-of-the-box choice, especially for users who value simplicity, improved default performance, and do not anticipate needing higher-than-2.5GbE networking down the line. However, the long-term value proposition becomes murkier when you factor in the DS923+’s PCIe expansion, broader drive compatibility, and the potential price drops that will follow its ageing status in Synology’s lineup. In short, the DS925+ is the better NAS on day one—more powerful, faster, and quieter. But if you’re planning for day 1,000, it’s worth pausing to consider whether the expandability and media flexibility of the DS923+ may be a better fit for your storage and networking needs over the next five to seven years.

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If you like this service, please consider supporting us. We use affiliate links on the blog allowing NAScompares information and advice service to be free of charge to you.Anything you purchase on the day you click on our links will generate a small commission which isused to run the website. Here is a link for Amazon and B&H.You can also get me a Ko-fi or old school Paypal. Thanks!To find out more about how to support this advice service check HEREIf you need to fix or configure a NAS, check Fiver Have you thought about helping others with your knowledge? Find Instructions Here  

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The UGREEN DH4300 PLUS NAS Review – Good Value?

The UGREEN DH4300 Plus is a 4-bay NAS solution introduced quietly into the company’s growing lineup of storage devices, appearing online without the usual fanfare. Closely related to the DH4300 Plus in both hardware and feature set, this model forms part of UGREEN’s value-tier NAS systems, designed to provide essential private cloud functionality at a lower cost. Targeted at home users, prosumers, and small offices, the DH4300 Plus offers a mix of modern storage capacity and lightweight computing through its ARM-based architecture. With support for RAID 0, 1, 5, 6, and 10, 2.5GbE networking, and up to 120TB of raw storage across four SATA bays, the device aims to provide a reasonably capable platform for tasks like file serving, multimedia streaming, and basic photo management.

However, the DH4300 Plus doesn’t just follow the pattern of other budget NAS solutions. It includes features uncommon at this price point, such as HDMI output and 10Gbps USB connectivity, which extend its use case beyond simple backups into media and even light-duty AI-powered photo organization. Its system-on-chip, the Rockchip RK3588, is more powerful than the processors seen in comparable entry-level NAS systems from other brands like Synology or QNAP. While it lacks the high-end features of premium NAS units—such as multi-port networking or M.2 expansion—it still manages to deliver a compact, energy-efficient package suited to most daily NAS workloads. This review breaks down each component of the DH4300 Plus, from its physical design and internal hardware to its software ecosystem, to help users decide whether this is the right solution for their needs.

UGREEN DH4300 NAS Review – Quick Conclusion

The UGREEN DH4300 Plus stands out as a well-equipped entry-level NAS that offers considerably more than its modest price tag suggests, positioning itself as a serious contender in the growing value NAS market. Powered by the RK3588 ARM processor and backed by 8GB of LPDDR4X memory, it delivers capable performance for a wide range of NAS tasks including file sharing, media streaming, light containerization via Docker, and AI-assisted photo management. Its support for 2.5GbE networking, 10Gbps USB ports, and HDMI 2.1 output adds versatility, enabling faster-than-Gigabit transfer speeds and options for direct media playback or on-site display access. The system’s low power consumption, compact footprint, and quiet operation make it especially well-suited for 24/7 deployment in home or small office environments. AI functionality for face recognition and album generation, powered by the on-chip NPU, further enhances its value for users managing large personal photo or media libraries. However, the device is limited by its lack of PCIe or M.2 expansion, absence of link aggregation or redundant LAN, and the relatively immature UGOS Pro software, which trails behind DSM and QTS in terms of advanced features, third-party app support, and overall refinement. Still, for users seeking a reliable, efficient, and feature-packed NAS at a competitive price, the DH4300 Plus represents a compelling option that punches well above its weight—offering core functionality, multimedia capabilities, and surprising hardware strength without venturing into high-end NAS pricing territory.

SOFTWARE - 6/10

HARDWARE - 7/10

PERFORMANCE - 6/10

PRICE - 9/10

VALUE - 10/10

7.6

PROS

Powerful ARM CPU: Equipped with the RK3588 SoC, offering 8 cores, integrated GPU, and NPU for AI workloads.
Generous (but fixed!) Memory: 8GB LPDDR4X RAM, rare in budget NAS systems, supports multitasking and Docker use.
2.5GbE Network Port: Provides faster-than-Gigabit throughput for backups, media streaming, and multi-user access.
HDMI 2.1 Output: Rare on ARM powered turnkey NAS, and enables direct media playback or NAS control at up to 4K 60Hz, uncommon in value-tier NAS units.
USB 10Gbps Ports: Dual USB-A 10Gbps and one USB-C 5Gbps allow for high-speed backups or external storage expansion.
AI Photo Management: Built-in NPU supports facial recognition and scene detection for local, private media organization.
Low Power Consumption: Efficient under load (~30W) and idle (~5W without drives), suitable for 24/7 operation.

CONS

No PCIe or M.2 Expansion: Lacks future scalability for NVMe caching, 10GbE, or other upgrades.
Single LAN Port: Only one 2.5GbE port, with no failover or link aggregation support.
Limited Software Ecosystem: UGOS Pro lacks iSCSI, VM support, and native Jellyfin, trailing behind DSM/QTS in maturity.

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UGREEN DH4300 NAS Review – Design and Storage

The UGREEN DH4300 Plus adopts a minimalist, vertical chassis design that blends functional cooling with a relatively compact footprint. Measuring 155mm x 155mm x 215.7mm, the enclosure is tall and narrow, allowing it to accommodate four internal 3.5″ or 2.5″ SATA drives without consuming significant desk space. Instead of traditional hot-swappable trays, UGREEN uses a toolless drive insertion mechanism where each drive slides vertically into the chassis.

This approach reduces complexity and keeps production costs lower but introduces compromises in terms of drive handling and vibration isolation. The top panel is removable and held magnetically, granting access to the internal drive bays and initial setup QR code sticker located inside the lid. Ventilation is handled by side vents, perforations at the top of the cover, and a single downward-facing internal fan near the system board.

Drive installation is simple but not entirely refined. Each of the four bays inside feeds directly into a fixed SATA backplane. Drives are inserted vertically without caddies and seat against rubber bumpers at the rear, which help reduce some of the mechanical vibration but do not provide the same structural integrity or thermal separation found in more traditional hot swap and more easily accessible tray-based designs.

The plastic inner rails feel light and somewhat fragile, especially when compared to metal-based bays found in more premium NAS models. Still, the internal structure was found to be sufficient during testing, even when populating the system with higher-capacity drives. The unit officially supports up to 4 x 30TB drives, allowing a total storage capacity of 120TB in JBOD or RAID configurations, though users will need to supply their own disks as none are included in the package.

Airflow and thermal behavior of the DH4300 Plus are managed via passive intake vents and a single active cooling fan positioned on the base of the chassis. This fan draws air from the top and sides of the NAS, passing it over the CPU and power delivery components before exhausting out the bottom. While this layout is thermally efficient for a low-power device like this, it lacks redundancy and doesn’t allow for custom fan curve profiles within UGOS Pro.

During 24-hour tests with four IronWolf drives installed, drive temperatures remained between 44°C and 45°C, while the system chassis and CPU areas stayed in the range of 38°C to 42°C under typical workloads. Though these temperatures are within operational thresholds, users deploying the NAS in warmer environments or fully populating it with high-RPM drives may need to consider ambient airflow or active external cooling assistance.

The DH4300 Plus is constructed from a mix of metal and plastic materials, with a soft matte finish and minimal front I/O clutter. This helps the device appear more neutral in office or home setups. All primary status LEDs are located subtly on the front edge, along with a power button and high-speed USB-C port. Despite its budget positioning, UGREEN has maintained an external aesthetic that doesn’t look out of place beside other premium tech. However, internal cost-saving decisions are more evident. The lack of a proper drive locking mechanism or hotswap support reinforces that this NAS is not meant for heavy-duty enterprise usage or high-frequency drive replacement tasks. It is more appropriate as a near-permanent local storage solution once disks have been installed and configured.

In terms of storage functionality, the DH4300 Plus supports multiple RAID modes, including Basic, JBOD, RAID 0, 1, 5, 6, and 10. This flexibility is notable, as several competing ARM-based NAS units limit RAID options—particularly RAID 6, which requires higher CPU and memory resources to compute parity. While software RAID performance will depend heavily on the chosen configuration and disk types, the Rockchip RK3588 SoC proved capable of maintaining consistent performance in RAID 5 across moderate workloads, including file copying, media playback, and snapshot operations. UGREEN’s system also offers automatic drive recognition and formatting through the UGOS Pro interface, allowing less experienced users to get started quickly, though without the advanced data scrubbing and repair features available on some higher-end NAS platforms.

UGREEN DH4300 NAS Review – Internal Hardware

At the heart of the DH4300 Plus lies the Rockchip RK3588 processor, an 8-core ARM-based SoC featuring a hybrid core architecture. It combines four high-performance Cortex-A76 cores with four efficiency-oriented Cortex-A55 cores, providing a significant performance uplift over most ARM-based NAS processors in the same price bracket. The RK3588 includes a Mali-G610 GPU and an integrated NPU capable of delivering up to 6 TOPS of AI performance. This allows for features like facial recognition, object tagging, and scene categorization within UGOS Pro. Notably, this chip has seen growing popularity in DIY NAS and edge computing applications due to its multimedia capabilities and low power draw. Its inclusion in a turnkey NAS platform at this price point positions the DH4300 Plus as an outlier among typical value-series offerings.

Complementing the processor is 8GB of LPDDR4X memory, which is soldered to the board and not user-upgradable. While this limits long-term scalability, 8GB is a generous amount for an ARM-based NAS and sufficient for most general-purpose NAS workloads including file sharing, media serving, AI-assisted photo sorting, and light Docker container deployment. The system also features a 32GB eMMC module, serving as a dedicated system drive for UGOS Pro. This separation of the OS from user storage pools ensures stability during boot and updates while also freeing up the full capacity of installed SATA drives for data. The lack of NVMe or SATA DOM options means the eMMC is fixed, but in practice, it performed reliably during testing without any bottlenecks.

From a thermal and power standpoint, the RK3588 platform proves to be highly efficient. Even under moderate to heavy loads—such as simultaneous file transfers, streaming tasks, and indexing—the SoC maintains stable temperatures in the low 40s Celsius range. Combined with a modest power draw of around 30–35 watts under active use (and ~4.7 watts at idle without drives), the DH4300 Plus is suitable for continuous 24/7 operation in home or office environments. While the lack of ECC memory or redundant power limits its appeal for enterprise deployment, the core hardware is well-balanced for its target audience, especially when considering how much performance and functionality is packed into a device with a sub-$400 price point.

UGREEN DH4300 NAS Review – Ports and Connections

The UGREEN DH4300 Plus offers a streamlined but functionally adequate set of connectivity options for a value-focused NAS. On the front of the device, users will find a USB-C port rated at 5Gbps, accompanied by two additional USB-A ports on the rear capable of 10Gbps transfer speeds. These high-speed USB ports are somewhat unusual on an ARM-based NAS and allow for faster direct-attached storage backups or peripheral integration, including UPS management or external media access. While not hot-swappable in the OS UI, the ports performed reliably in tests when mounting USB SSDs and thumb drives for quick file transfer and offline sync. Their positioning also maintains a tidy cable layout, with most high-traffic connections located on the back panel.

Network connectivity is delivered through a single 2.5GbE RJ45 port, which represents a solid step above the standard 1GbE ports found on most entry-level NAS units. This allows the DH4300 Plus to exceed typical Gigabit transfer speeds, reaching up to ~280MB/s in peak file transfer tests using large sequential data. However, the inclusion of only one LAN port means there’s no support for link aggregation or failover. This limits the device’s flexibility in multi-user environments or scenarios requiring redundancy. Given the hardware capabilities of the RK3588 platform, a second LAN port—or even a fallback 1GbE—would have been ideal. Still, for a single-user or small team deployment, the 2.5GbE connection is more than sufficient for everyday access to large media files, backups, and collaborative workspaces.

One of the most unexpected and welcome features is the presence of an HDMI 2.1 output, capable of 4K at 60Hz. HDMI on value-tier NAS systems is uncommon, and its inclusion here enables media playback, real-time NAS control via a directly connected monitor, and potential kiosk or signage applications. The UGOS Pro operating system includes a built-in theater mode to pair with this feature, although its capabilities are more basic than those found in platforms like QNAP’s HD Station. Nevertheless, for users wanting to leverage the NAS as a lightweight local media center or for on-site admin access without relying solely on browser-based control, the HDMI output adds flexibility. The only caveat is that the device lacks any form of PCIe expansion, so users cannot add additional ports or NVMe caching options later.

UGREEN DH4300 NAS Review – Software and Services

The DH4300 Plus runs UGOS Pro, UGREEN’s proprietary NAS operating system tailored for ARM-based platforms. While it doesn’t match the feature depth of more mature systems like Synology DSM or QNAP QTS, UGOS Pro has seen steady improvements and now covers most of the foundational functions expected from a modern NAS. The UI is browser-accessible and includes modules for storage management, user permissions, cloud sync, backups, and multimedia playback. During testing, the OS handled basic setup, RAID initialization, and file system formatting efficiently. Users can configure shared folders, enable SMB/NFS/AFP protocols, and even set up multi-tiered backup routines to local, USB, or cloud destinations such as Google Drive and Dropbox.

One of the more advanced features is the integrated AI photo engine, which leverages the RK3588’s NPU to organize media libraries using facial recognition, object tagging, and scene classification. This is similar in principle to what Synology Photos or QNAP QuMagie offer, though UGOS Pro lacks the same level of customization or filtering depth. The system can automatically generate albums, identify duplicates, and even create baby-focused timelines.

These features worked reliably on smaller photo sets but began to slow down when indexing larger libraries—likely a result of both memory and algorithmic efficiency. Despite this, the inclusion of AI functionality in a sub-$400 NAS is notable, especially since it runs locally and does not require cloud processing.

Application support is growing within UGOS Pro. Native apps for file access, media playback, surveillance (limited), and mobile sync are included, along with support for Docker containers, allowing users to sideload additional tools not officially available. Notably, BTRFS is supported as a file system option, enabling snapshot functionality and some degree of data integrity checks. However, there are limitations: virtualization is not supported due to the ARM architecture, and there’s currently no iSCSI target support.

Additionally, while the broader UGREEN ecosystem includes a Jellyfin app for other devices, this model did not have native Jellyfin support at launch—requiring users to deploy it manually via Docker. Features like multi-factor authentication, scheduled shutdown/start, and remote access are included, but power users may find the interface lacking compared to more polished systems.

UGREEN DH4300 NAS Review – Verdict and Conclusion

The UGREEN DH4300 Plus carves out a unique niche in the budget NAS landscape by delivering hardware typically reserved for higher-tier systems at a much lower price point. Its RK3588 processor, 8GB of RAM, and support for 2.5GbE networking place it well ahead of most similarly priced competitors in terms of raw specifications. Additionally, features such as HDMI output, 10Gbps USB ports, and local AI-powered photo indexing are rare to find in entry-level NAS systems. Despite its plastic-heavy internal design and lack of expansion options like PCIe or M.2, the device delivers stable performance for file sharing, media access, and low-intensity AI workloads. It is not suited for power users demanding virtual machines or advanced snapshot automation, but within its class, the DH4300 Plus presents an appealing balance between cost and capability.

That said, the software experience is still a work in progress. UGOS Pro covers the essentials and offers a visually accessible UI, but lacks the advanced features and ecosystem integration found in more mature platforms like Synology DSM or QNAP QTS. Docker and snapshot support add welcome flexibility, but the absence of native Jellyfin, iSCSI, and VM functionality limits its use in more complex environments. Still, for home users, media collectors, or small office setups looking for reliable backup, modest AI-enhanced photo sorting, and smooth 4K playback, the DH4300 Plus delivers value well beyond its price tag. While it won’t replace high-end NAS appliances, it serves as a capable, efficient, and quietly innovative option in a saturated entry-level NAS market.

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New Value Series UGREEN DH4300 and DH2300 NAS Drives

UGREEN has unveiled two new value-focused NAS devices, the DH3400 and DH3200, designed to meet the needs of home and small office users who want practical, low-power network storage without unnecessary complexity. The DH3400 is a 4-bay model, while the DH3200 offers a 2-bay configuration, both intended for those looking to implement efficient backups, multimedia streaming, and personal cloud storage at a more affordable price point. First revealed through the 2025 iF Design Awards and then quietly launched with a limited discount during Amazon Prime Day, these models occupy a lower tier in UGREEN’s NAS range, complementing rather than replacing their existing higher-end DXP series.

These two devices clearly target users who prioritize straightforward functionality over high-end processing power or advanced virtualization. Both systems are engineered with energy-efficient components and a compact design that makes them suitable for desktop environments where noise, heat, and power consumption need to be minimized. By offering a clear set of features—including RAID support, snapshot capabilities, and 4K multimedia output—at a modest price, the DH3400 and DH3200 aim to appeal to customers who need reliable, low-maintenance storage hardware that can integrate easily into a home network or small office setup.

UGREEN DH2300 and DH4300 NAS Hardware Specifications

The UGREEN DH3400 and DH3200 are built on a shared hardware platform, with the key difference being drive bay count—four bays on the DH3400 and two on the DH3200. Both systems use the Rockchip RK3588C processor, an 8-core ARM-based SoC running at 2.4 GHz, designed to prioritize energy efficiency and low thermal output rather than raw performance. The RK3588C includes integrated Mali-G610 graphics and an AI engine capable of delivering up to six tera operations per second (TOPS), which enables features like facial recognition and semantic photo search without taxing the CPU as much as it would likewise ARM processors without it.

Both units come equipped with 8 GB of soldered LPDDR4X memory, which cannot be upgraded. This is a typical limitation of ARM-based NAS systems, where memory is tightly coupled with the SoC for efficiency. The onboard memory is adequate for the included software stack, which supports multi-user environments, Docker containers, and AI-driven media management. For system storage, UGREEN integrates a 32 GB eMMC module to host the UGOS Pro operating system. This keeps the SATA bays fully available for user storage, though it does mean the system disk cannot be swapped or expanded.

The DH3400 supports up to four 3.5” or 2.5” SATA drives, while the DH3200 supports two, and both models can accommodate up to 30 TB per bay, for a maximum of 120 TB on the DH3400 when fully populated. Supported RAID configurations include JBOD, Basic, RAID 0, 1, 5, 6, and 10, providing a range of data protection and performance options suited to home and SOHO environments.

Networking and external connectivity are kept simple yet functional. Each system includes a single 2.5 GbE Ethernet port, which supports transfer speeds up to roughly 300 MB/s under optimal conditions. Although dual LAN ports for link aggregation or failover would have been welcome at this price point, the single-port setup is likely sufficient for the target audience.

Three USB ports are provided: one USB-C @ 5Gb/s and two USB-A @ 10 Gb/s. These are useful for connecting additional external drives, creating tiered backups, or quickly offloading data from portable devices. The inclusion of a full-size HDMI port capable of 4K/60Hz output is another notable feature, enabling direct connection to a monitor or TV for multimedia playback or system administration from a local display—something not all competing devices offer.

From a physical and design perspective, the DH series is clearly built to fit seamlessly into a home or small office. The DH3400’s chassis measures just 155 × 155 × 215.7 mm, and its vertical, injection-molded plastic design keeps its footprint compact and thermals manageable. Power consumption is modest at a rated 12V/6A, helping keep operational costs low and making the units suitable for 24/7 use.

The overall aesthetic is understated, drawing comparisons to earlier Western Digital consumer NAS devices, with a focus on quiet operation and minimal disruption to the workspace. While there is no support for PCIe expansion or M.2 NVMe storage—features found in higher-end UGREEN DXP models—the streamlined hardware specification aligns with the device’s role as an affordable, efficient, and easy-to-deploy file server for users who don’t require more advanced features.

UGREEN DH2300 and DH4300 NAS Software Specifications

Both the DH3400 and DH3200 ship with UGREEN’s UGOS Pro operating system, a Linux-based NAS software platform designed to be user-friendly while offering a solid range of core functionality. UGOS Pro provides a clean, browser-based interface accessible from Windows, macOS, Android, iOS, web browsers, and even smart TVs, making it easy for users to manage their storage from almost any device. The OS supports secure multi-user access with advanced encryption, a built-in firewall, and two-factor authentication, ensuring that data remains protected from unauthorized access. Local data storage is emphasized over cloud reliance, though cloud backup targets are supported for redundancy.

In terms of features, UGOS Pro includes most of the essential applications expected of a modern NAS. File and folder management is straightforward, with support for SMB/CIFS, NFS, and WebDAV protocols. Users can set up scheduled or on-demand backups, including multi-tiered strategies spanning local drives, external USB storage, and supported cloud services. Snapshot functionality is included to help protect against accidental deletion or data corruption. Multimedia applications are also integrated, with tools for organizing and streaming photos, videos, and music, plus support for the HDMI output for direct 4K media playback on connected displays.

Despite being a value-oriented device, the DH3400 and DH3200 still offer some advanced capabilities thanks to the efficiency of the RK3588C CPU. These include AI-powered features such as photo recognition by faces, scenes, and locations, automatic duplicate removal, and the creation of personalized albums. Semantic search functionality helps users locate files more intuitively, and Docker is supported for lightweight containerized applications. However, resource-intensive functions like virtualization and more complex enterprise-grade apps are not included, in keeping with the intended role of these systems as affordable, entry-level NAS solutions. Plus, no doubt, the ease of integrating this more cost-effective solution with other, more powerful DXP NAS systems using the nativa backup sync application is going to be a breeze on the LAN!

UGREEN DH2300 and DH4300 NAS – Price and Launch Date?

UGREEN’s new DH2300 and DH4300 NAS models have already quietly launched, with availability beginning during Amazon Prime Day 2025 in what can best be described as a stealth release. The DH4300, the 4-bay model, is currently listed at $429.99 diskless, although a temporary promotional discount during Prime Day dropped the price as low as $349.99. At the time of writing, UGREEN has not provided an official end date for the promotional pricing, so buyers should assume the standard price is $429.99 going forward. The DH2300, the 2-bay variant, has not yet been widely listed, and official pricing for that model has yet to be confirmed. Both models are expected to continue rolling out to major online retailers over the coming weeks, with broader global availability likely to follow given UGREEN’s previous product launch patterns. For now, early adopters in supported regions can purchase the DH4300 directly from platforms like Amazon, and keep an eye on listings for the DH2300 to appear soon. Buyers should note that, as with most diskless NAS products, storage drives are sold separately. These models are positioned as affordable, efficient storage solutions in UGREEN’s lineup, complementing rather than replacing their existing DXP series. By offering a lower barrier to entry, UGREEN appears to be catering to users looking for basic yet capable NAS hardware at an accessible price. Those interested in purchasing should monitor retailer listings closely for availability and any further discounts as stock becomes more widely distributed.

You can order from the Official UGREEN site via the banner below:

Alternatively, the UGREEN DH4300 has appeared on Amazon on Multiple locations. So you can check the Amazon store in your region by clicking the banner below.

Remember. We get a small commission from any sales that occur from using the links above, and these go directly into allowing us to keep doing what we do.

UGREEN Store – https://ugreen.pxf.io/jejy6Z/

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Synology DS1825+ vs DS1821+ NAS Comparison – Get It Right, FIRST TIME!

When Synology releases a new NAS in its “Plus” lineup, users often expect a blend of practical improvements, long-term support, and a reasonable upgrade path from the previous generation. The Synology DS1825+ arrives in 2025 as the official successor to the 2020/2021-released DS1821+, carrying over much of the same core design while introducing selective enhancements—and a few contentious changes. Both are 8-bay desktop NAS systems targeted at advanced home users, small businesses, and content creators who need multi-user access, flexible RAID configurations, and extensive app support. However, while the DS1821+ was praised for its broad compatibility and modular connectivity, the DS1825+ adopts a more tightly controlled hardware ecosystem. In this comparison, we break down the key differences across hardware, ports, storage capabilities, DSM software features, and drive compatibility so you can decide which model truly fits your long-term needs—without second-guessing your choice later.

Synology DS1825+ vs DS1821+ NAS Comparison – Internal Hardware

At the center of both the Synology DS1821+ and DS1825+ is the AMD Ryzen V1500B processor, a 4-core, 8-thread embedded SoC with a 64-bit architecture and a base frequency of 2.2 GHz. This chip, built on the Zen architecture, offers a balance of power efficiency and multi-threaded performance suited for environments with simultaneous multi-user file access, virtual machines, and complex RAID configurations. Synology’s decision to retain the same processor in the DS1825+ reflects confidence in its reliability and capability. However, for users hoping for a jump to Zen 2 or Zen 3-based hardware, the lack of a CPU upgrade could be a disappointment—especially considering that competing vendors have started adopting newer architectures for their mid-range systems. Still, for typical NAS tasks that do not involve on-the-fly 4K video transcoding or GPU-heavy operations, the V1500B remains a stable and effective platform with AES-NI encryption support and virtualization compatibility across VMware, Hyper-V, and Docker workloads.

Thermal and power characteristics between the two systems remain largely consistent, with both featuring dual 120mm fans and an internal 250W PSU that can handle full drive loads with expansion units attached. The DS1821+ and DS1825+ are also nearly identical in physical size and structure, though the newer model has a slightly higher idle noise level—23.8 dB(A) versus 22.2 dB(A)—due to denser internal configuration and possibly fan speed curve adjustments. From an operational standpoint, the DS1825+ is marginally more power-efficient in idle states, consuming just 18.34W during HDD hibernation compared to 26.18W in the DS1821+. These marginal differences suggest a refinement in system tuning, although not a radical redesign. Overall, while the DS1825+ doesn’t revolutionize internal hardware, its doubled memory and subtle optimizations give it the edge for users planning to push DSM with multiple services or those who prefer an upgrade-free deployment experience.

Synology DS1825+ vs DS1821+ NAS Comparison – Ports and Connections

One of the most tangible areas of differentiation between the DS1821+ and DS1825+ lies in their external connectivity. The older DS1821+ is equipped with four 1GbE RJ-45 LAN ports, a familiar configuration that supports link aggregation and network redundancy. This setup was common in Synology’s mid-range lineup during its 2020–2022 releases, offering a total aggregated bandwidth of up to 4Gbps—assuming your switch infrastructure supports it. For many small business users, this array of ports provided simple flexibility: you could dedicate individual ports for different services or bond them for faster file transfers. However, in practice, 1GbE is increasingly becoming a limiting factor for modern workloads, especially in environments with large raw video files, database access, or multiple users performing high-speed backups.

Beyond networking, the DS1825+ introduces a notable change in expansion port design. The DS1821+ includes two eSATA ports for attaching Synology DX517 expansion units, which align with legacy expansion practices. In contrast, the DS1825+ replaces these with two USB-C-based expansion ports, designed specifically for use with the newer DX525 expansion units. While this doesn’t directly affect day-to-day operations, it signals a move toward a USB-based proprietary interface for future expansion, likely with more streamlined cabling and higher throughput potential. Additionally, the DS1825+ trims down from four USB 3.2 Gen 1 ports to three, a minor trade-off that may impact users with multiple USB-connected devices such as UPS units or backup drives. Still, for most users, the improved network and expansion standards make the DS1825+ more forward-looking, even if it reduces legacy connectivity options found on the DS1821+.

Synology DS1825+ vs DS1821+ NAS Comparison – Storage

Both the DS1821+ and DS1825+ offer eight front-facing SATA drive bays, supporting 3.5″ HDDs and 2.5″ SSDs, with hot-swappable trays for easy maintenance and upgrades. On the surface, storage capacity and configuration appear nearly identical: both models can scale up to 18 total drives using two Synology expansion units and support RAID levels including SHR, RAID 5, 6, and 10. This makes either system a viable choice for users with large datasets, whether for media, surveillance, or business-critical file hosting. However, subtle distinctions in how storage can be configured and expanded in each model make a significant difference over time.

Storage Feature	Synology DS1821+	Synology DS1825+
Drive Bays	8 × 3.5″/2.5″ SATA (hot-swappable)	8 × 3.5″/2.5″ SATA (hot-swappable)
Max Drive Bays (with Expansion)	18 (via 2 × DX517)	18 (via 2 × DX525)
M.2 NVMe Slots	2 × M.2 2280 (cache only, 3rd-party SSDs allowed)	2 × M.2 2280 (cache or storage pools, Synology-only SSDs)
Max Single Volume Size	108 TB	200 TB (requires 32 GB RAM)
Max Internal Volumes	64	32
Supported RAID Types	SHR, JBOD, RAID 0, 1, 5, 6, 10	SHR, JBOD, RAID 0, 1, 5, 6, 10
Third-Party HDD/SSD Support	Fully supported (with warnings)	Blocked at install/init if not verified
Storage Pool Creation with Unverified Drives	Allowed	Blocked
Storage Pool Expansion (Unverified Drives)	Supported	Blocked
RAID Recovery with Unverified Drives	Supported	Blocked
Hot Spare (Unverified Drives)	Supported	Blocked
Storage Manager Behavior (Unverified Drives)	Warnings shown, but system fully functional	Persistent alerts, some functions disabled

The DS1825+ supports storage pools using its two internal M.2 NVMe slots, something the DS1821+ does not. On the older model, those slots are limited strictly to SSD caching, and even then, Synology allowed users to use third-party NVMe drives for read/write acceleration. In the DS1825+, Synology enables users to form full storage pools using M.2 SSDs—but only if those SSDs are from Synology’s own SNV3400 or SNV3410 series. This adds flexibility in theory, especially for users interested in all-flash configurations or high-speed tiers, but restricts user choice in practice. The DS1821+ offers more freedom in selecting SSDs and hard drives, with only non-blocking warning messages when using unverified models, while the DS1825+ actively blocks storage pool creation and system initialization with unlisted drives.

This tightening of compatibility extends into pool expansion, RAID rebuilds, and even hot spare assignments. In the DS1821+, users could freely mix third-party drives and expand pools over time using available or similarly specced HDDs—even those not on the official compatibility list. The DS1825+ takes a stricter approach: attempts to initialize DSM with unverified HDDs will fail, and pool expansion or RAID recovery with unsupported drives is outright blocked. While existing volumes from older NAS systems can still be migrated and booted, they will trigger persistent compatibility warnings in DSM, often with degraded system health indicators. This shift may offer Synology more control over performance validation and support consistency, but it limits flexibility for users relying on diverse or existing storage media—making the DS1821+ a better option for those with a mix-and-match approach, and the DS1825+ more suitable for fully standardized Synology deployments.

Synology DS1825+ vs DS1821+ NAS Comparison – DSM Capabilities

Both the DS1821+ and DS1825+ are powered by Synology’s DiskStation Manager (DSM) 7.2 operating system, offering access to a rich suite of applications for file management, backup, surveillance, virtualization, and cloud syncing. Core tools such as Synology Drive and Synology Photos provide a private cloud alternative to services like Google Drive or Dropbox, while packages like Hyper Backup and Active Backup for Business enable full-system and client-based data protection strategies. These services run similarly on both systems, but hardware differences can influence practical performance. For example, the DS1825+ ships with 8 GB of ECC memory by default, making it more responsive when running multiple DSM apps in parallel—such as Snapshot Replication combined with Virtual Machine Manager and Drive Client Sync. In contrast, the DS1821+ ships with 4 GB of memory, which may require an upgrade before achieving similar multitasking fluidity, especially in environments with more than a few simultaneous users.

DSM Feature / Capability	Synology DS1821+	Synology DS1825+
DSM Version	DSM 7.2+	DSM 7.2+
Max Internal Volumes	64	32 ▼ Reduced
Max Single Volume Size	108 TB	200 TB (requires 32 GB RAM) ▲ Increased
Snapshot Replication	256 per shared folder / 4,096 total system snapshots	256 per shared folder / 4,096 total system snapshots
Virtual Machine Manager (VMM)	Up to 8 VM / Virtual DSM instances	Up to 8 VM / Virtual DSM instances
Surveillance Station	Up to 40 cameras / 4K / 1,200 FPS (H.265)	Up to 40 cameras / 4K / 1,200 FPS (H.265)
Synology Drive Users	Up to 110 users ▲ Higher	Up to 100 users ▼ Lower
Synology Office Users	Up to 110 concurrent users ▲ Higher	Up to 100 concurrent users ▼ Lower
Hybrid Share Folder Support	10	10
High Availability Support	Yes	Yes
RAID Recovery (with unverified drives)	Supported	Blocked
Hot Spare / Expansion (unverified drives)	Supported	Blocked
Storage Manager (Unverified Drives)	Warnings only, system fully functional	Persistent alerts, functions blocked
M.2 NVMe Storage Pools	Not supported	Supported (Synology NVMe SSDs only)
M.2 NVMe Caching with 3rd-party SSDs	Supported	Blocked
Protocols Supported	SMB1/2/3, NFSv3/v4, FTP, WebDAV, Rsync, iSCSI, HTTP/HTTPS, LDAP	SMB1/2/3, NFSv3/v4, FTP, WebDAV, Rsync, iSCSI, HTTP/HTTPS, LDAP

Differences emerge in how each system handles volume structure and scaling. The DS1821+ supports up to 64 internal volumes, giving it an advantage in deployments where users need to segregate workloads—for instance, separating surveillance footage, shared team folders, user home directories, and VM storage into distinct volumes for quota management and performance tuning. This flexibility makes the DS1821+ better suited for educational institutions or small business IT teams who manage multiple user groups and need clear storage separation. The DS1825+, on the other hand, limits internal volumes to 32 but increases the maximum single-volume size to 200 TB (with 32 GB RAM installed). This makes it better aligned with large, contiguous workloads like uncompressed 4K video editing archives, security footage retention for legal compliance, or massive CAD/CAM datasets—all of which benefit more from fewer, larger volumes than from numerous smaller ones.

Service limits within DSM also subtly differentiate the two models. The DS1821+ is rated for up to 110 concurrent users in Synology Drive and Office, whereas the DS1825+ recommends a slightly lower threshold of 100 users. While the difference is marginal, it may reflect the DS1825+’s tighter memory tuning or more restrictive compatibility model, which now relies on verified Synology storage media for optimal performance. For example, in environments running Synology Office with real-time collaborative editing—paired with Drive, MailPlus, and external file sharing through WebDAV—the DS1821+ might offer more flexibility when loaded with third-party high-performance SSDs for caching. The DS1825+, restricted to Synology’s own SNV3400/3410 NVMe drives, demands tighter ecosystem compliance, which could affect responsiveness if storage performance becomes a bottleneck. Nonetheless, both models offer full support for advanced DSM modules like Synology High Availability, SAN Manager, and Hybrid Share, ensuring that users deploying in mission-critical environments still have access to the high-availability and hybrid cloud features that define Synology’s enterprise-ready platform.

Synology DS1825+ vs DS1821+ NAS Comparison – Conclusion

Choosing between the Synology DS1825+ and DS1821+ comes down to whether you prioritize modern hardware refinements or broader long-term flexibility. The DS1825+ introduces subtle but meaningful upgrades: faster 2.5GbE connectivity, double the base memory, and NVMe storage pool support—features that clearly position it as the more forward-thinking choice for users committed to staying within the Synology ecosystem. However, these improvements come with tighter restrictions, most notably in its rigid drive compatibility policy. DSM cannot be installed unless only Synology-verified drives are used, and the system actively blocks unverified drives from being used in storage pools, RAID rebuilds, or even hot spare configurations. In contrast, the DS1821+ offers more freedom—supporting a wider range of HDDs and SSDs, allowing RAID recovery and expansion with non-Synology drives, and presenting a cleaner, less obstructive DSM experience when migrating from older hardware. While it may lack the newer model’s out-of-the-box performance gains, its open-ended architecture gives users—especially those with legacy drives or mixed environments—more breathing room. For users building a NAS from scratch and willing to adopt Synology’s closed hardware ecosystem, the DS1825+ is a capable and streamlined solution. But for those looking to extend the life of existing hardware or retain control over their storage media choices, the DS1821+ remains the more versatile and user-friendly option.

Aspect	Synology DS1821+	Synology DS1825+
Pros	– Full support for 3rd-party drives (HDDs & SSDs)	– Higher default RAM (8 GB ECC pre-installed)
	– Supports RAID recovery, expansion, and hot spares with unverified drives	– 2.5GbE networking (faster out-of-the-box performance)
	– More flexible for DIY and legacy system migrations	– NVMe storage pool support (Synology SSDs only)
	– Supports more internal volumes (up to 64)	– USB-C expansion ports with newer DX525 units
	– Better choice for mixed-brand or cost-conscious deployments	– Improved volume scaling (up to 200TB per volume with RAM upgrade)
Cons	– Older network setup (1GbE x4, slower unless aggregated)	– Strict drive compatibility enforcement (Synology-only drives required)
	– No NVMe storage pool support	– Blocks DSM install with unverified drives
	– Lower default memory (4 GB, upgrade likely needed for advanced workloads)	– Fewer internal volumes supported (32 max)
		– Persistent system warnings when migrating existing arrays with non-Synology drives
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Want to follow specific category? Also Read...Synology DS1825+ vs UGREEN DXPWeek 31 Tech Roundup – 245TBGMKTec G9 NAS (New Improved CoTerramaster F4 SSD NAS ReviewHow to Use Unverified HDDs andSynology DS225+ NAS ReviewSynology DS425+ NAS Review - SSynology DS225+ NAS Review - SN7 AMD 8845HS 2x 10GbE NAS MotUGREEN DH4300 PLUS NAS Review Subscribe You can also follow specific search terms:

This description contains links to Amazon. These links will take you to some of the products mentioned in today's content. As an Amazon Associate, I earn from qualifying purchases. Visit the NASCompares Deal Finder to find the best place to buy this device in your region, based on Service, Support and Reputation - Just Search for your NAS Drive in the Box Below

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If you like this service, please consider supporting us. We use affiliate links on the blog allowing NAScompares information and advice service to be free of charge to you.Anything you purchase on the day you click on our links will generate a small commission which isused to run the website. Here is a link for Amazon and B&H.You can also get me a Ko-fi or old school Paypal. Thanks!To find out more about how to support this advice service check HEREIf you need to fix or configure a NAS, check Fiver Have you thought about helping others with your knowledge? Find Instructions Here  

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UniFi New NAS Rumours – Everything We Know

Duing the UniFi World Conference event (the UWC 2025 expo event that took place in several places around the world over a week in May) the brand took the opportunity to share a huge amount of information about their roadmap for hardware and software in 2025 (and 2026!) and although there was a lot of information about cameras, switches, integrations and improvements – the big, BIG detail that emerged that got my attention was that the UNAS series of NAS devices is rumoured to be getting several portfolio additions over the course of the next 18+ Months! All of this was seemingly shared behind closed doors, with photography and video prohibited during the presentations (with choice projects by the brand like these limited to keynote ‘on stage’ presentations) and not available for general access and sharing on the show floor.

However, ALOT of the information shared was then discussed at length on forums and community sites across the internet (unsurprisingly predominantly on Reddit more than most – shocker I know). Because of this, we have a great deal of rumoured, shared and near-confirmed information about what the brand is planning for the soon to be growing UNAS series of devices – including a potentially dedicated M.2 NVMe SSD flash devices, Enterprise grade ZFS Rackmount system (XG NAS?) and even more entry level desktop solutions in 2 and 4 Bay SATA.

There is a lot to get to and I think we will likely see granular and gradual updates to all of these solutions as time wears on, so I wanted to create this article to add shared info and leaks as they appear online. You can get notifications and alerts on this page by subscribing at the bottom of the article.

IMPORTANT – Regardless of how solid/rumoured any of the UniFi UNAS systems that are detailed on this page are – do NOT be complacent about your data and backups! If you need a backup solution right now/soon, do not ‘hold out’ for these devices, as no device will ever be worth the danger of your data being lost (power lose resulting in a raid failure, data corruption, accidental deletion..need I go on?). So, if you like the sound of UniFi and their products, and the UNAS from UniFi sounds like it meets your needs, it is still available RIGHT NOW for just $499 HERE – It is a 7x SATA Half-Depth Rackmout NAS with 10GbE and a comprehensive data management software in UniFi Drive. You can watch my review HERE and my 6 Months Later update on it HERE.

Here is a list of Sources on Reddit that detail what was observed at Unifi World Conference 2025 with regard to Network Attached Storage:

Which UniFi UNAS Devices Are Rumoured for 2025 and 2026?

16th June 2025 Updated

Below are the details we know so far (some details need further verification and confirmation, indicated appropriately) that we are aware of so far. Keep in mind (IMPORTANT) that these drives are massively ‘TBC’, so alongside potential name changes it is also possible that they may not arrive at all – as UniFi might change their mind based on market research about the need for a given device! Additionally, sometimes information online is contradictory to other information (eg the larger and smaller scale NAS system and a potential Pro XG system might well be the same device!), so do not treat this information as set in stone! Let’s break down each entry:

>>>>> IMPORTANT – IMAGES FOR GUIDANCE ONLY <<<<<

2 Bay Entry-Level HDD NAS

The UNAS Pro, although popular, is none the less quite large for much smaller user deployments – so if UniFi was to really stretch it’s muscles into the world of NAS, it would come as no surprise that they would provide more entry/small-footprint devices. So, the oft mentioned 2 Bay UNAS would be desirable, but also UniFi’s most compact HDD system to date, targeting home and SOHO users looking for simple backup or file-sharing functionality. No confirmation or detail on the shared information on the hardware profile (one can imagine an ARM base and 2-4GB of memory – but it’s all very ‘TBC’) and 2.5GbE connectivity. 2 drives would give precious little bandwidth for 10GbE to even be worth the time of day, even with SATA SSDs.

Specification	Details
Bays	2 x 3.5” HDD
Storage Type	SATA HDD
Software	UniFi Drive 3.0
Features	Entry-level NAS, ideal for backups
Status	Confirmed Seen at UWC2025
Source(s)	Source 1, Source 3

An NVMe SSD NAS dedicated NAS for Creative Workflows

This proposed SSD focused NAS moves away from spinning disks in favor of M.2 NVMe SSD slots, focusing on silent, high-performance workflows for media creators or prosumers. This compact unit maintains a passive cooling design and leverages Drive 3.0’s new dynamic storage pool system to balance protection and performance. It’s intended for those needing faster I/O than HDDs can provide without the size or noise of a rackmount. if this ends up coming out, is would be INCREDIBLY popular (given M.2 SSD prices are now only around 2x more than HDD, with a 4TB M.2 NVMe SSD in both Gen3 and Gen4 hitting just $200+, and WD Red and Seagate Ironwolf 4TB HDDs around the $89-99 mark)

Specification	Details
Bays	Unknown – Possibly 4x M.2 NVMe
Storage Type	PCIe SSD (M.2)
Software	UniFi Drive 3.0 (NVMe pool optimization)
Features	High-performance SSD storage, silent design
Status	Confirmed Seen at UWC 2025
Source(s)	Source 1, Source 3

4 Bay Desktop-Grade HDD NAS

This would deliver a more durable 4-bay solution with a desktop form factor, designed for small business environments or tech-savvy users. It combines the flexibility of 3.5″ HDDs with the enhanced features of UniFi Drive 3.0, including smarter snapshots and storage pools. Compared to the standard UNAS 2-bay discussed solution, this model would offer better RAID options, as well as performance potential (even in a RAID 5). Nevertheless, if/when this comes around, expect modest hardware under the hood!.

Specification	Details
Bays	4 x 3.5” HDD
Storage Type	SATA HDD
Cooling	Active fan (almost certainly!)
Software	UniFi Drive 3.0
Features	Mid-range performance, desktop NAS
Status	Confirmed Seen at UWC 2025
Source(s)	Source 1, Source 3

A ‘Proper’ 4 Bay and 8 Bay Rackmount NAS

Alongside the already released 7 Bay UNAS Pro, there is talk of a 4 Bay and 8-bay rackmount NAS aimed at larger deployments such as offices, branch networks, or video surveillance environments as a storage target for UniFi Portect perhaps. Built to handle RAID 6 (rolling ut in the latest UniFi NAS OS and Drive updates) and large-scale storage pools, it includes business-class hardware for redundancy and expandability. Its release aligns with Ubiquiti’s push into more scalable data solutions under the UniFi Drive 3.0 future framework.

Specification	Details
Bays	4 and 8 x 3.5” HDD
Storage Type	SATA HDD
Cooling	Likely Dual fan or rack-grade cooling
Software	UniFi Drive 3.0
Features	RAID 6 support
Status	Confirmed, Seen at UWC 2025
Source(s)	Source 1, Source 3

An Enterprise ZFS Appliance – THIS IS WHERE IT GETS GOOD!

Although the existing UNAS Pro NAS system runs on an BTRFS foundation, there was multiple references and rumours to UniFi’s first foray into ZFS-based NAS systems and appears to be targeted at enterprise environments requiring snapshot-based backup, inline compression, and greater control over storage topology. Very few hardware specifics have been shared, and it is unclear whether this is a completely separate physical unit or a software SKU atop a Pro-series device. I will be interested to see if, if this arrives, how they will migrate the existing UNAS/Drive/NAS OS appliances onto this ZFS base – as well as whether it will benefit from the inline and native performance/integrity benefits of ZFS!

Specification	Details
Bays	TBD
Storage Type	ZFS pools (likely mixed HDD/SSD)
Cooling	Likely 2 stage rackmount active cooling
Software	ZFS OS (Unconfirmed re:UniFi Drive 3.0)
Features	Snapshots, compression, enterprise storage, in-line ZFS benefits
Status	Confirmed (via software roadmap) at UWC 2025
Source(s)	Source 3, Source 4

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Does the Orico Cyberdata Vault CF56 and CF56 Pro Deserve Your Data?

IMPORTANT – This is a review of two early prototypes of the Orico Cyberdata Vault NAS devices that will be launching on crowdfunding in July, and likely will see improvement and optimization as time and development continue. I provide this rolling/dynamic review as an indication of what the system is aiming fo ran a full and detailed review of the final product will arrive much closer to launch.

The Orico CyberData Vault CF56 and CF56 Pro NAS systems are part of a newly developed six-model lineup that will be launched via Kickstarter, aimed squarely at prosumers, media professionals, and small business environments in need of hybrid local storage with higher bandwidth connectivity and ZFS support. Both systems are built around the same chassis design but differ significantly in internal capabilities: the CF56 features an Intel Core i3-N305 processor (8-core, 8-thread), while the CF56 Pro steps up to an Intel Core i5-1240P (12-core, 16-thread). The units combine traditional 3.5-inch HDD storage (five bays) with six M.2 NVMe SSD slots for caching or tiered storage configurations, housed within a structure that offers magnetic access panels and multi-zone active cooling.

These models also introduce Orico’s new CyberData OS, a ZFS-based operating system featuring snapshots, real-time media indexing, and AI photo recognition—although in its current form it remains incomplete and in early development. With features such as dual 10GbE on the Pro model, USB4 connectivity, and flexible expansion via a GPU dock or RAID cabinet, these NAS systems reflect Orico’s shift from accessory brand to full-scale storage solution provider. While still prototype units, the CF56 and CF56 Pro demonstrate hardware ambition aligned with recent trends in semi-professional NAS design, echoing earlier moves from competitors like UGREEN, Aoostar, and Minisforum.

Orico Cyberdata Vault Review – Quick Conclusion

The Orico CF56 and CF56 Pro offer a promising blend of modern hardware, hybrid storage design, and ZFS-based data protection aimed at prosumers and small creative teams seeking high-speed, subscription-free private cloud solutions. With a total of five 3.5” HDD bays and six M.2 NVMe SSD slots, both units provide considerable flexibility for building tiered or cache-accelerated storage environments, while their use of efficient Intel processors—the N305 in the CF56 and the more powerful i5-1240P in the Pro—positions them for a wide range of workflows from basic file serving to heavier tasks like 8K transcoding, Docker hosting, and AI media indexing. The CF56 Pro, in particular, stands out with its dual 10GbE networking, USB4 ports, GPU dock support, and multi-zone cooling—placing it closer to workstation-class NAS territory. However, both models are currently limited by the early state of their CyberData OS software, which, while promising in features like snapshots, AI recognition, and mobile integration, suffers from missing essentials such as two-factor authentication, a complete app ecosystem, and consistent language localization. Performance results also reflect this unfinished software layer, with SMB transfer speeds and transcoding performance falling short of the hardware’s full potential. Concerns like elevated NVMe temperatures on the Pro model and the lack of ECC memory support—despite ZFS being the default file system—underscore the need for careful expectations among more advanced users. Nonetheless, as hardware platforms, the CF56 and CF56 Pro are well-designed and competitive, particularly if Orico can deliver on its planned optimizations and enhancements by the time of full release.

BUILD QUALITY - 8/10

HARDWARE - 8/10

PERFORMANCE - 7/10

PRICE - 8/10

VALUE - 8/10

7.8

PROS

Hybrid storage: 5x HDD + 6x M.2 NVMe SSD (flexible ZFS configurations)
Dual 10GbE on CF56 Pro for high-speed networking
Modern CPUs: Efficient N305 and powerful i5-1240P
Expandability via GPU dock (CF56 Pro only) and USB4 RAID cabinet
Up to 64GB DDR5 RAM with dual-channel (CF56 Pro)
Multi-zone active cooling and manual fan profiles
HDMI + DisplayPort output with 4K/8K support
Integrated AI media management and Docker support

CONS

No ECC memory support
USB4 ports lack network-over-USB functionality (Coming Later Apparently)
Early firmware lacks optimization (e.g. SMB transfer speeds)
CyberData OS lacks two-factor authentication and app store currently
Top NVMe region on CF56 Pro runs hot under load (80°C) on this protoype
Localization/UI inconsistencies in current OS build (still pre-launch) and Software still in development; not final at time of review
Crowdfunding is Not For Everyone

Orico Cyberdata Vault Review – Design

The exterior design of the CF56 and CF56 Pro is clearly built around practical serviceability and visual minimalism, with both devices using a shared chassis that prioritizes easy access to internal components. The most distinctive feature is the magnetic front panel, which is removable without tools and serves both an aesthetic and functional purpose. This panel provides ventilation along the sides and top edges, as well as system information through onboard LED indicators.

Behind it, the five 3.5-inch drive bays are arranged vertically on a dedicated SATA backplane, pre-wired for direct access to the internal storage controller. This layout streamlines maintenance and makes drive replacement relatively simple, although hot-swap capability has not been officially confirmed in the prototype documentation.

Above the HDD area, users will find four top-facing M.2 NVMe SSD slots located beneath a secondary magnetic lid, which includes a washable mesh dust filter. This dual-layered design gives quick tool-less access to the upper SSDs, and the system provides enough internal clearance to accommodate full-height heatsinks.

Underneath the chassis are two additional M.2 NVMe slots, accessed by removing the base plate, which is secured with standard screws. Combined, this provides a total of six M.2 bays, enabling hybrid storage setups where SSDs can be allocated for cache, metadata pools, or as part of a tiered ZFS configuration. While the layout appears consistent across both models, there are minor internal structural differences, especially in the power and thermals between the N305 and i5 variants.

Build quality varies slightly depending on perspective. The chassis exterior is predominantly plastic for reduced weight and cost, but the internal structure—such as drive cages, shielding, and board mounting points—is fully metal, contributing to better durability and heat dissipation.

Ventilation is managed by a single large rear fan, with the Pro variant including additional improvements in thermal zoning. Noise levels remained within reasonable limits during testing, with the CF56 model averaging 29–31 dBA in quiet mode and the CF56 Pro rising to 46–47 dBA under full load. This suggests that although the design is visually consistent, thermal demands increase substantially with the i5-1240P model under sustained workloads or dense NVMe configurations.

One notable design concern relates to the temperature observed in the upper M.2 bay region of the CF56 Pro. During extended stress testing, the top section of the chassis reached temperatures close to 80°C, prompting early correspondence with Orico about hardware revision plans. According to the brand, this issue has already led to a second- and third-generation PCB redesign, aiming to reduce thermal concentration around the CPU and top NVMe slots. It’s expected that the final retail revision of the CF56 Pro will include enhanced heat dissipation features in that area, potentially including better ventilation cutouts or redesigned passive cooling components on the board level.

Lastly, the system’s approach to internal power delivery differs subtly between models. Both the CF56 and CF56 Pro use an external PSU that connects via a barrel plug, but the wattage and thermal ceiling requirements are significantly higher on the Pro due to its 12-core CPU and expanded 10GbE networking. These differences also manifest in fan curve behavior and system-wide power consumption. Under light but active load (including live network activity and idle CPU), the CF56 consumed around 45–46W. In contrast, the CF56 Pro peaked at 79–81W during 8K transcoding and full NVMe/HDD population. This further emphasizes how both models share a common enclosure but diverge internally to meet their respective performance tiers.

Orico Cyberdata Vault Review – Internal Hardware

Internally, the CF56 and CF56 Pro share a similar board layout, but the differences in their processors define the target use case and overall capabilities of each unit. The CF56 is powered by the Intel Core i3-N305, an energy-efficient 8-core/8-thread processor based on the Gracemont architecture. This CPU is commonly used in fanless mini PCs and excels in multi-threaded workloads at low power consumption, making it suitable for light-to-moderate NAS tasks such as SMB file serving, local backups, Docker containers, and light Plex usage. Meanwhile, the CF56 Pro features the Intel Core i5-1240P, a significantly more powerful 12-core/16-thread processor with four performance cores and eight efficiency cores. This hybrid architecture provides greater burst throughput and a better foundation for AI-enhanced services, real-time media indexing, and virtualization tasks.

Both systems come with DDR5 memory pre-installed—16GB in the prototype units—but with different slot configurations. The CF56 includes a single DDR5 SO-DIMM slot, limiting it to a maximum of 32GB of memory and restricting dual-channel capability. In contrast, the CF56 Pro includes two SO-DIMM slots, supporting up to 64GB DDR5 and enabling dual-channel operation, which offers a notable performance uplift in workloads such as memory-intensive VMs or media databases. However, ECC memory is not supported on either model, due to both CPUs lacking ECC validation. This may concern users intending to rely on ZFS for mission-critical operations, as ECC is typically recommended in those scenarios to prevent silent data corruption.

Storage throughput is also heavily influenced by the PCIe lane allocation on each model. In the CF56, all six M.2 NVMe SSD slots operate on Gen 3 lanes, with those on the top four slots running at PCIe 3.0 x1 speeds and the bottom two reaching PCIe 3.0 x4. While this limits maximum per-slot bandwidth to around 1 GB/s on the upper four, it allows for cost-effective use of Gen 3 drives, which remain widely available and affordable. The CF56 Pro offers higher total bandwidth, with its top four M.2 slots upgraded to PCIe 3.0 x2, and the bottom two retaining PCIe 3.0 x4. Despite the i5-1240P supporting Gen 4 PCIe, Orico appears to have intentionally limited all M.2 slots to Gen 3 to manage thermals and ensure system stability under prolonged load.

An unexpected discovery during prototype testing revealed a possible seventh internal M.2 slot in the CF56 Pro, presumed to host the system boot drive or be reserved for future expansion. However, due to the lack of SSH access in the prototype firmware, further validation was not possible at the time of recording.

Regardless, the six main M.2 slots and five SATA drive bays offer ample storage configurability, especially when paired with the ZFS features of CyberData OS. System cooling, power delivery, and memory configuration all reflect Orico’s attempt to match their component selection with real-world use cases—balancing between hardware headroom, affordability, and the needs of semi-professional users handling mixed media workflows.

Orico Cyberdata Vault Review – Ports and Connections

The CF56 and CF56 Pro both offer a broad selection of ports, but the Pro model significantly extends external connectivity, particularly in terms of networking and high-speed data interfaces. On the CF56, the rear I/O includes a standard 2.5GbE LAN port alongside a single 10GbE RJ45 connection, suitable for most users looking to transfer large media files or operate light virtual environments. The CF56 Pro upgrades this to two dedicated 10GbE ports, allowing for simultaneous high-throughput tasks or link aggregation configurations. This networking setup makes the Pro variant especially attractive for multi-user environments, such as small studios, where heavy media file access and backups may occur concurrently across devices.

Both models include a similar array of USB ports on the rear and front panels. This consists of two USB 3.2 Gen 2 ports for high-speed peripheral or DAS connectivity, and two legacy USB 2.0 ports suitable for input devices or basic accessories. The CF56 Pro goes a step further by incorporating dual USB4 ports—though in testing, these were not available for direct network interface (as is possible on some modern NAS with Thunderbolt or USB-C network tunneling), but functioned as general-purpose USB interfaces. According to Orico, future firmware revisions may unlock additional functionality, but as of the current prototype, USB4 is primarily used for connecting high-speed external drives or expansion units.

Video output is supported across both systems, which include an HDMI 2.0 port and a DisplayPort 1.4 connection on the CF56, and upgraded HDMI 2.1 and DisplayPort 1.4a outputs on the CF56 Pro. These allow users to output up to 8K display resolution, enabling the NAS to function as a lightweight desktop, digital signage server, or direct-play multimedia center. Integration with CyberData OS supports media playback and basic interface control over HDMI, though there are some limitations in UI optimization for direct screen navigation, especially in the current prototype firmware. Still, the availability of dual video outputs on both models reflects a growing trend in hybrid NAS/HTPC design.

Power input is provided via a barrel connector on both models, though the CF56 Pro uses a higher-wattage external PSU due to the increased demands of its CPU and dual 10GbE networking. Internal power distribution appears to be cleanly handled, and the systems remained electrically stable during tests. One area of future interest will be how Orico handles expandability. While Thunderbolt or USB4-based RAID cabinets are planned for the series, support was not fully implemented in the prototype stage. GPU dock support is also present only on the larger devices in the product family, leveraging the i5’s PCIe expansion capability for dedicated GPU tasks such as video rendering, AI inference, or VM acceleration.

Orico Cyberdata Vault Review – Performance, Heat and Power Tests

Initial performance evaluations of the CF56 and CF56 Pro revealed that while the underlying hardware is capable, real-world throughput is currently constrained by early-stage software optimization. During SMB file transfer testing over 10GbE, both models struggled to reach expected performance levels, with the CF56 averaging below 500 MB/s and the CF56 Pro rarely breaking 1 GB/s, even under favorable conditions. Orico acknowledged this limitation and confirmed that software-level optimization was ongoing. As such, these figures should be treated as provisional and not reflective of the final product performance. In both models, ZFS was used as the underlying file system, configured in a hybrid tiered setup with HDDs for capacity and NVMe for metadata and caching.

Transcoding tests were particularly revealing of the CPU differences between the models. The CF56 managed basic 1080p and some 4K H.265 transcodes via software decoding, but exhibited signs of strain under higher bitrates or simultaneous streams. In contrast, the CF56 Pro with its i5-1240P processor handled up to eight 8K transcodes concurrently during one benchmark, maintaining responsiveness while CPU usage hovered around 30%. Despite this impressive processing ability, peak system power draw climbed to 81W, highlighting the thermal and energy trade-offs required for sustained performance. Notably, neither system offers hardware transcoding via Intel Quick Sync, as support for it was not accessible in the current CyberData OS build.

Thermal management remained mostly acceptable, though not without concern on the CF56 Pro. Under stress, the top M.2 bay area reached 80°C, and while no thermal throttling occurred, prolonged exposure could reduce SSD lifespan or stability. Orico responded that this issue was already being addressed through a revised internal board layout and enhanced venting. The CF56 maintained lower temperatures during the same tests, remaining between 38–46°C under average usage. The difference is largely attributable to the lower TDP of the N305 CPU and reduced overall system throughput, which in turn generated less heat throughout the chassis.

Noise levels were measured in all three fan modes (Quiet, Standard, and Turbo) to assess usability in home or small office settings. In Quiet mode, the CF56 registered 29–31 dBA, making it suitable for desktop deployment or living room environments. The CF56 Pro remained silent under light use, but escalated to 46–47 dBA under Turbo mode, with fan noise becoming noticeably audible. Most of the ambient sound during low to moderate use came from HDD activity, rather than the cooling fans. The OS includes manual fan control and profile scheduling, allowing users to balance performance and acoustics based on workload and time of day.

Orico Cyberdata Vault Review – Software and Services

The desktop client software included with the Orico CF56 and CF56 Pro NAS systems is built on fnOS, a closed-source NAS operating system developed in China and increasingly licensed by various hardware brands. In its current state, the desktop interface provides access to all core storage functions, including RAID management, user permissions, snapshot control, and file operations, but it clearly reflects a system still undergoing development.

While the application is responsive and offers real-time monitoring of CPU, memory, and storage activity, it lacks polish in both design layout and localization. Several UI elements remain inconsistently translated, and some modules—such as the multimedia suite and AI functions—exhibit a mixture of English and untranslated Chinese text even when the system language is set to English.

Functionally, the OS supports the major protocols expected from a ZFS-based platform, including SMB, NFS, FTP, and Time Machine backup for macOS. File-level encryption, inline deduplication, and snapshot creation are all available within the storage management interface, with options for cache acceleration using the M.2 NVMe drives.

However, the absence of certain administrative features—most notably two-factor authentication, SSH access, and a dedicated app store—limits its appeal for security-conscious users or those looking to expand functionality via community-developed tools.

The system does include Docker support with a container manager interface, but VM deployment and third-party service integration (e.g., Plex, Jellyfin) are currently unavailable or not pre-installed.

The file management system in the desktop client is functional but basic, offering drag-and-drop file operations, preview support for common file types, and options for setting sharing permissions. Remote access features rely on a relay service provided by Orico, and while this worked reliably during testing, there was no visible option for configuring custom domain access, HTTPS certificates, or firewall profiles—features typically expected in more mature NAS operating systems.

Some of the advanced AI features, such as facial recognition and semantic photo tagging, are accessible through this desktop interface, but their functionality is inconsistent due to metadata scraping issues and interface reliability.

On the mobile side, the fnOS-derived application shows greater completeness. The Android client used during testing allowed for quick setup, user management, remote file access, and snapshot control. Photo and video libraries are indexed automatically and presented with timeline views, location tags, and album sorting. The app also supports real-time uploads, camera roll backups, and basic editing metadata tagging.

AI recognition features such as object detection and face grouping are available, although semantic search accuracy remains mixed.

Remote control of HDMI playback from the phone is supported, allowing content streaming directly to a connected display, but the controls remain basic and lack the refinement of dedicated media remote interfaces.

Overall, while the mobile app appears more polished and covers most core user needs, both desktop and mobile software clients reflect a platform that is not yet feature-complete. The reliance on fnOS gives Orico a functional foundation with native ZFS support and UI consistency across devices, but the closed nature of the system, combined with the lack of extensibility and incomplete localization, may limit its immediate appeal outside of its domestic market.

If Orico follows through on promised optimizations and expands the software stack with a proper app ecosystem and advanced security controls, the platform could become more viable in international NAS markets. Until then, the software should be considered a work-in-progress that supports basic NAS tasks but may fall short for more demanding or technical deployments.

Orico Cyberdata Vault Review – Verdict and Conclusion

The Orico CF56 and CF56 Pro represent a calculated step into the semi-professional NAS market by a brand historically known for accessories and external storage enclosures. By leveraging Intel’s N305 and i5-1240P processors, DDR5 memory, and a mix of HDD and NVMe storage options, Orico offers a compelling hardware platform on both models—especially in terms of expandability and bandwidth potential. The CF56 is well-suited for users who require reliable local storage with some containerization and light media usage, while the CF56 Pro pushes into territory typically occupied by entry-level rackmounts or high-end desktop NAS systems, thanks to its dual 10GbE ports, USB4 support, and improved thermal zoning. While the lack of ECC memory may deter more cautious enterprise buyers, most of the design trade-offs appear intentional and aligned with prosumer priorities.

That said, both units remain in a pre-release state at the time of writing, and their software platform—CyberData OS—is clearly still under development. While the ZFS integration, AI media indexing, and snapshot management show promise, issues such as language inconsistencies, incomplete feature sets, and missing essentials like two-factor authentication may limit early adoption. File transfer and multimedia performance also require further optimization, with current speeds falling short of the hardware’s capabilities. As prototypes, the CF56 and CF56 Pro demonstrate strong hardware foundations, and if the OS matures as expected by launch, these units could become legitimate alternatives to mainstream NAS systems in the increasingly crowded hybrid storage space.

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Synology DS1525+ vs DS1522+ NAS Comparison – Get It Right, FIRST TIME!

With the arrival of the Synology DS1525+ in 2025, many users are now weighing it against its immediate predecessor, the DS1522+, released in 2022. On the surface, both NAS units share the same 5-bay form factor, nearly identical chassis design, and very similar price points—typically between $699 and $799 at launch. However, a deeper dive reveals a number of meaningful changes in hardware resources, storage expansion policies, and how Synology now handles drive compatibility and system flexibility. While the DS1525+ does offer better networking and CPU core count, it also introduces tighter restrictions on what drives can be used, how storage pools are formed, and what options are available to users looking to migrate data from older systems. By contrast, the DS1522+ retains a far more open approach to hardware, offering greater freedom for enthusiasts and IT professionals. In this article, we’ll break down the internal hardware, ports, storage support, DSM software capabilities, and system behavior of these two NAS systems—giving you the context you need to make the right decision the first time, and avoid buyer’s regret later.

Synology DS1525+ vs DS1522+ NAS Comparison – Internal Hardware

The most noticeable hardware difference between the DS1525+ and DS1522+ lies in their processors. The DS1522+ is powered by a dual-core AMD Ryzen R1600 CPU, which operates at a base frequency of 2.6 GHz and can boost up to 3.1 GHz. This chip delivers strong single-threaded performance and is very power efficient, making it well-suited for environments where tasks are sequential or lightly parallelized—such as SMB file sharing, surveillance, or general-purpose storage. The DS1525+, in contrast, uses a quad-core AMD Ryzen V1500B processor running at a fixed 2.2 GHz. While it lacks boost frequency, the additional cores and threads make it the more capable option for multitasking-intensive DSM deployments. Workloads like hosting multiple Docker containers, running several VMs, or operating high-volume backup jobs are handled more smoothly by the V1500B thanks to its stronger concurrent throughput. While synthetic benchmarks might show the R1600 ahead in single-threaded operations, in day-to-day NAS usage, the V1500B’s multitasking benefits are more relevant—particularly for users aiming to centralize many services on one box.

Synology DS1525+ vs DS1522+ NAS Comparison – Ports and Connections

The differences between the DS1525+ and DS1522+ become more apparent when examining their networking and expansion connectivity. The DS1522+ is equipped with four 1GbE RJ-45 LAN ports, which support link aggregation for up to 4 Gbps combined bandwidth when used with a managed switch. This configuration provides solid redundancy and flexible port allocation, especially for environments where isolating traffic across different services (e.g., backups, media, surveillance) is desirable. However, in 2024 and beyond, 1GbE is increasingly viewed as a bottleneck—particularly for users working with 4K video editing, large VM images, or fast local backups. The DS1525+ addresses this issue by shifting to 2 × 2.5GbE RJ-45 LAN ports, allowing up to 5 Gbps total bandwidth through link aggregation, and faster speeds on a per-connection basis, even when using unmanaged 2.5GbE switches that are now more common and affordable. This change aligns the DS1525+ with modern mid-tier NAS expectations and offers improved real-world performance, especially for multi-user workloads and high-speed transfers from SSD caches or NVMe pools.

Feature	Synology DS1522+	Synology DS1525+
LAN Ports	4 × 1GbE RJ-45	2 × 2.5GbE RJ-45
Link Aggregation / Failover	Yes	Yes
USB Ports	2 × USB 3.2 Gen 1	2 × USB 3.2 Gen 1
Expansion Ports	2 × eSATA (for DX517)	2 × USB Type-C (for DX525)
PCIe Slot	1 × PCIe Gen3 x2 (for 10GbE upgrade)	1 × PCIe Gen3 x2 (for 10GbE upgrade)
Wake on LAN / WAN	Yes	Yes
Scheduled Power On / Off	Yes	Yes
Hot-Swappable Drive Bays	5 × SATA HDD/SSD (M.2 not hot-swappable)	5 × SATA HDD/SSD (M.2 not hot-swappable)
M.2 NVMe Slots	2 × M.2 2280 (cache only, 3rd-party SSDs supported)	2 × M.2 2280 (cache and storage, Synology SSDs only)
Expansion Compatibility	DX517 (eSATA interface)	DX525 (USB-C interface)

In terms of USB connectivity, both models include two USB 3.2 Gen 1 ports, suitable for attaching external drives, UPS units, or compatible USB printers. These ports remain unchanged between models and offer no direct performance advantage to either system. Where the expansion capability does change significantly is in the port type for connecting additional storage enclosures. The DS1522+ includes two eSATA ports, allowing it to connect up to two DX517 expansion units, adding 10 more drive bays. The DS1525+, however, replaces these with two USB Type-C expansion ports, which interface with the newer DX525 expansion units. While the overall expansion capacity remains the same (15 total bays), the move to USB-C reflects a generational shift in Synology’s design language. USB-C may offer slightly more flexible cable routing and future-proofing, but it also introduces a hard cutoff between older and newer ecosystems. For users with existing DX517s or other eSATA-based gear, this limits backwards compatibility and locks the DS1525+ into the latest hardware infrastructure.

Additionally, both units include a PCIe Gen3 x2 slot for optional 10GbE network upgrades. Synology’s E10G22-T1-Mini card is supported on both models and provides a compact, cost-effective way to future-proof network performance. However, given the DS1525+ already starts with 2.5GbE, users may find less urgency to upgrade immediately compared to the DS1522+, where a 10GbE card may be needed sooner to break past 1GbE limitations. Both models support Wake-on-LAN and scheduled power events, and both feature dual rear fans for effective cooling regardless of network traffic or drive load. From a connectivity standpoint, the DS1525+ represents a forward step toward higher-speed networking and modern expansion methods—but it does so at the cost of legacy compatibility, which may matter for users with established infrastructure. In contrast, the DS1522+ offers broader port coverage and flexibility but risks becoming dated more quickly in high-throughput environments.

Synology DS1525+ vs DS1522+ NAS Comparison – Storage

At first glance, storage capacity and physical layout appear virtually identical between the DS1525+ and DS1522+. Both systems offer five main drive bays that support 3.5″ SATA HDDs and 2.5″ SATA SSDs, as well as two M.2 NVMe SSD slots for caching or, in the case of the DS1525+, full storage pool creation. Each NAS can be expanded up to a total of 15 bays using two proprietary Synology expansion units (DX517 for the DS1522+, DX525 for the DS1525+), enabling up to 240 TB of raw storage assuming maximum capacity drives. However, a major divergence emerges when we examine drive compatibility policies. The DS1522+ follows Synology’s older, more permissive approach: users may install third-party drives from brands like Seagate, Western Digital, or Toshiba with only warning messages shown during setup. Storage pools, RAID arrays, and DSM installation all proceed without functional restrictions, making it a flexible platform for users with existing drives or cost-sensitive deployments.

Storage Feature	Synology DS1522+	Synology DS1525+
Drive Bays	5 × 3.5″/2.5″ SATA HDD/SSD (Hot-swappable)	5 × 3.5″/2.5″ SATA HDD/SSD (Hot-swappable)
M.2 NVMe Slots	2 × M.2 2280 (Cache only, 3rd-party SSDs allowed)	2 × M.2 2280 (Cache & Storage Pool, Synology SSDs only)
Maximum Drive Bays (with Expansion)	15 (with 2 × DX517 via eSATA)	15 (with 2 × DX525 via USB-C)
Supported RAID Types	SHR, Basic, JBOD, RAID 0/1/5/6/10	SHR, Basic, JBOD, RAID 0/1/5/6/10
Max Internal Volumes	64	32
Max Volume Size	108 TB	200 TB (requires 32 GB RAM)
NVMe Storage Pool Support	Not supported	Supported (Synology SNV drives only)
3rd-Party Drive Support	Fully supported (with warnings)	Blocked (DSM install/expansion/recovery restricted)
RAID Recovery with Unverified Drives	Supported	Not allowed
Storage Pool Expansion (Unverified)	Supported	Blocked
Hot Spare Assignment (Unverified)	Supported	Blocked
Drive Migration (with 3rd-party drives)	Functional, with warnings	Allowed, but persistent warnings & blocked expansion

The DS1525+, by contrast, enforces the strict drive verification policy introduced in Synology’s newer Plus series models, like the DS925+ and DS1825+. At launch, only Synology-branded drives (HAT3300, HAT5300, SAT5200, and SNV3400 series) are listed as officially compatible. If users attempt to initialize DSM using unverified HDDs—such as a standard WD Red Plus or Seagate IronWolf—the installation process will be blocked entirely. This represents a significant limitation for long-time Synology users who are accustomed to broader hardware flexibility. Even after successful DSM setup, the system will not allow users to expand storage pools, rebuild degraded RAID arrays, or assign hot spares using non-verified drives. Persistent warnings and degraded status indicators in Storage Manager will appear even for migrated volumes, making the DS1525+ less accommodating for mixed-media configurations or DIY upgrades. SATA SSDs, while slightly more flexible in some scenarios, are still subject to similar warning behaviors post-install.

Further separating the two models is support for NVMe-based storage pools. The DS1522+ only allows M.2 NVMe SSDs to be used for read/write caching, and it permits the use of third-party SSDs for this function, giving users a cost-effective route to performance acceleration. The DS1525+, however, allows these NVMe slots to be used for full DSM storage volumes—but only when using Synology-verified SNV-series SSDs. This enables the creation of fast, low-latency storage pools using NVMe media, which is a compelling advantage for certain workflows (like media scratch disks or high-speed sync folders). Still, the restricted compatibility policy limits practical utility for those who already own quality NVMe drives from other vendors. In short, while the DS1525+ technically offers more advanced storage architecture, the DS1522+ offers far more freedom, especially for users managing legacy systems, migrating data from older Synology devices, or sourcing their own HDDs and SSDs independently.

Synology DS1525+ vs DS1522+ NAS Comparison – DSM Capabilities

Both the DS1525+ and DS1522+ run Synology’s DSM 7.2 operating system and provide access to the same broad library of official and third-party packages. This includes core applications such as Synology Drive for file sync and access, Synology Office for collaborative documents, and Active Backup for Business for system-wide backup management. The app experience is largely identical on both devices, with support for Virtual Machine Manager, Hyper Backup, Snapshot Replication, Synology Photos, and Surveillance Station. However, the differences in system hardware and compatibility enforcement subtly influence how DSM behaves and what features remain available under different configurations. For example, both models support up to 256 snapshots per shared folder and a system-wide maximum of 4,096 snapshots, but users on the DS1525+ will be subject to stricter compatibility enforcement in DSM’s Storage Manager if using drives that aren’t on Synology’s approved list.

DSM Feature / Capability	Synology DS1522+	Synology DS1525+
DSM Version	DSM 7.2+	DSM 7.2+
Max Internal Volumes	64	32 ▼
Max Single Volume Size	108 TB	200 TB (requires 32 GB RAM) ▲
Snapshot Replication	256 per shared folder / 4,096 total system snapshots	256 per shared folder / 4,096 total system snapshots
Synology Drive Users	Up to 60	Up to 80 ▲
Synology Office Users	Up to 60	Up to 80 ▲
Virtual Machine Manager (VMs)	Up to 4 Virtual Machines	Up to 8 Virtual Machines ▲
Virtual DSM Instances (Licensed)	Up to 4	Up to 8 (1 free license) ▲
Hybrid Share Folder Limit	10	10
Surveillance Station (H.265)	40 cameras / up to 1200 FPS	40 cameras / up to 1200 FPS
Maximum SMB Connections (RAM Expanded)	30	40 ▲
RAID Recovery with 3rd-Party Drives	Supported	Blocked
Storage Expansion with Unverified Drives	Supported	Blocked
Hot Spare (Unverified Drives)	Supported	Blocked
M.2 NVMe Caching (3rd-Party SSDs)	Supported	Blocked
NVMe Storage Pool Creation	Not supported	Supported (Synology SNV SSDs only)
DSM Storage Manager Behavior (Unverified)	Warnings only, all features functional	Persistent alerts, blocks expansions and rebuilds
High Availability Support	Yes	Yes
Full System Backup (Hyper Backup)	Yes (DSM 7.2+)	Yes (DSM 7.2+)

Where this becomes particularly relevant is during system migration or advanced storage scenarios. The DS1522+ handles drive migration and unverified HDDs without functional limitation. DSM will display minor warnings but still permit RAID recovery, storage pool expansion, hot spare assignments, and cache creation—even with mixed-brand hardware. By contrast, the DS1525+ introduces active blocks within DSM for unsupported drives. Users migrating from older Synology NAS devices using drives like WD Red Plus or Seagate IronWolf will find that, while the DS1525+ may import the pool, DSM will flag the drives as unverified and prevent future RAID rebuilds or expansions unless all disks are from Synology’s supported list. These alerts cannot be disabled, and they will persist across the user interface, making the system appear at risk even if the drives themselves are healthy. This creates a significant difference in administrative experience, especially for IT professionals managing multiple systems or resellers integrating legacy hardware.

In terms of user and service scalability, the DS1525+ supports slightly higher limits overall. It allows for up to 80 Synology Drive users and Office users (versus 60 each on the DS1522+) and can support up to 8 concurrent virtual machines versus 4 on the DS1522+, assuming sufficient RAM is installed. Surveillance Station camera and FPS limits are virtually identical, and both models support High Availability, Hybrid Share, SAN Manager, and central management features. However, the DS1525+ supports larger single volume sizes—up to 200 TB if upgraded to 32 GB RAM—compared to the DS1522+’s 108 TB ceiling. In return, the DS1522+ offers more internal volume flexibility with support for up to 64 volumes, double the DS1525+’s 32 volume limit. This trade-off reflects Synology’s shifting priorities in DSM: the DS1525+ favors fewer, denser volumes and more centralized control, while the DS1522+ gives power users finer-grained storage separation. Both systems excel with DSM, but your experience will differ depending on whether you prioritize scalability and structure—or open, hardware-flexible operation.

Synology DS1525+ vs DS1522+ NAS Comparison – Conclusion

The Synology DS1525+ and DS1522+ may look nearly identical on the outside, but they diverge sharply in philosophy, system behavior, and long-term value. The DS1522+, launched in 2022, stands as one of the last truly flexible 5-bay NAS systems in Synology’s portfolio. It offers a dual-core AMD Ryzen R1600 processor with excellent single-thread performance and supports up to 15 drives with two DX517 expansions. More importantly, it retains the traditional Synology approach to third-party drive compatibility—meaning users can install and operate a wide range of HDDs and SSDs (Seagate, WD, Toshiba, etc.) without system blocks. DSM will issue warnings if a drive isn’t officially listed, but critical features like RAID recovery, storage pool expansion, and hot spare assignment continue to function. That level of hardware openness makes the DS1522+ particularly attractive to power users, budget-conscious builders, and small IT teams looking to repurpose existing hardware. The DS1525+, released in 2025, represents a subtle but significant shift in Synology’s design strategy. On paper, it offers solid upgrades: a quad-core AMD Ryzen V1500B processor that enables better multitasking, faster 2.5GbE LAN ports for improved data throughput, lower noise and power consumption, and full NVMe storage pool support (with Synology SSDs). These improvements make the DS1525+ a better fit for users running multiple simultaneous services—such as Surveillance Station, Synology Drive, and Docker containers—all while maintaining smooth operation. However, these benefits come with stricter limitations. The unit enforces Synology’s 2025-era drive verification policy, which outright blocks DSM installation or RAID operations with unverified drives. Migration is allowed, but users will be met with persistent warnings, degraded system status indicators, and feature restrictions that can’t be bypassed. The flexibility to reuse older drives, expand arrays freely, or mix hardware brands has been systematically curtailed.

In essence, the choice between these two NAS systems reflects more than just performance—it’s a decision between openness and control. The DS1522+ remains a strong all-rounder for users who want to build their system on their own terms, manage diverse storage needs, or repurpose hardware they already trust. It’s well-suited to small businesses, creators, and experienced users who value transparency and adaptability. The DS1525+, by comparison, is more refined, but also more prescriptive. It favors users willing to commit fully to Synology’s ecosystem—those who prioritize simplicity, tighter integration, and long-term consistency, even at the expense of flexibility. It’s a better fit for turnkey environments where reliability and vendor support matter more than customization. Both NAS devices are excellent in their own right, but the right choice depends entirely on how much control you’re willing to trade for convenience—and whether your NAS should be a platform you shape, or a solution that shapes your workflow.

Aspect	Synology DS1522+	Synology DS1525+
Pros	– Broad 3rd-party HDD/SSD compatibility	– 2.5GbE LAN ports for faster networking out of the box
	– Fully supports RAID recovery, expansion, and hot spares with any drive	– NVMe SSDs can be used for storage pools (Synology SSDs only)
	– Better suited for drive migration from older NAS systems	– Quad-core CPU enables better multitasking and virtualization
	– More internal volumes supported (up to 64)	– Lower power draw and slightly quieter operation
	– Ideal for budget-conscious users and mixed-brand deployments	– Slightly higher user caps in DSM apps (Drive, Office, VMM)
Cons	– Only 1GbE networking unless upgraded	– Blocks DSM install and critical functions with unverified drives
	– No support for NVMe storage pools	– Only Synology SSDs supported for caching or NVMe volumes
	– Lower VM performance ceiling (dual-core CPU)	– Fewer internal volumes supported (32 max)
		– Less suitable for users with existing 3rd-party storage hardware
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Synology Explain WHY They Changed Drive Support and Verification in 2025 NAS

During a recent visit to Taipei for Computex 2025, I took the opportunity to visit Synology’s headquarters and speak directly with company representatives about one of the most discussed and divisive topics in the NAS community today — the company’s increasingly strict stance on hard drive compatibility. With the rollout of Synology’s latest generation of hardware, users have been met with significant limitations on the use of third-party drives, prompting concern over reduced flexibility, potential e-waste, and the future direction of Synology’s hardware ecosystem. This article provides a can overview of that visit, beginning with the HQ tour, but mainly it is about putting several big questions users have about the brand’s change in support of Seagate, WD, etc on their 2025 devices.

Four core questions — based on direct community feedback — were put forward, addressing the motivation, risks, and future implications of Synology’s current drive support policy. Each answer is presented exactly as delivered. Note, this article is not sponsored by Synology and they have no control over the editorial stance and output! For users, partners, and industry observers alike, understanding these policy shifts is essential for making informed decisions about Synology systems moving forward.

Touring the Synology Headquarters

The Synology headquarters tour took place during a coordinated visit arranged alongside the Computex 2025 trade event. Approximately 30 to 40 individuals were in attendance, a mix that included official Synology partners, resellers, independent media, and technology commentators. The tour began with a structured company overview presentation outlining Synology’s operational history, business units, and market positioning.

While much of this information was familiar to long-term observers, it served to reinforce the company providing integrated storage and data management solutions. The presentation also included a brief overview of Synology’s global distribution and the evolving structure of its enterprise product lines.

Attendees were then guided through various areas of the facility, which covered several floors within a shared building. Synology does not occupy the entire structure, but the portions shown during the tour were substantial, comprising office sections, collaborative workspaces, logistics coordination areas, and support-related operations. Notably, many desks were temporarily unoccupied due to staff presence at Computex’s Nangang Exhibition Center.

Nonetheless, the offices remained populated with active terminals and systems undergoing live testing.

A significant portion of the tour focused on the environmental and durability testing facilities, including designated zones for acoustic profiling, thermal analysis, and dust resilience. The diversity of units being tested suggested coverage across multiple device classes, including both rackmount and desktop models.

The most extensive portion of the tour was the dedicated test and burn-in area. This floor was almost entirely devoted to long-term performance and diagnostic evaluations. Numerous Synology NAS units — some dating back to the early 2010s — were in continuous operation, either running synthetic workloads or undergoing compatibility assessments with the current DSM operating system.

The presence of so many legacy devices in active testing underscored the company’s emphasis on software longevity and cross-generational hardware support. However, it also provided a contrast to Synology’s new strict verification policies, especially given the mixed hardware environments visible during testing. The tour was led by ZP Kao, Sales Director at Synology, and Chad Chiang, Regional Manager for the UK and Germany, who offered clarification and responded to several direct inquiries during the walkthrough.

Why Has Synology Changed Its HDD Support Policy? Questions and Answers

Questions I put to Synology about their change in policy regarding verifying and supporting drive media being used on their 2025 and later series of NAS devices. I based these on the comments and suggestions from videos on the YouTube channel and comments on previous articles. I am under no illusions that these changes by Synology in their drive support policies have financial justifications (ranging from Support efficiency and it’s financial overhead, to the simple profitability of prioritizing their own labelled firmware optimized storage media choices over those of other brands), but I wanted to know if these were the only reasons for this? What other reasons could Synology provide to support this large and unpopular move. Thank you once again to Chad Chiang for taking the time to answer these questions.

Note – for a better understanding of the current DSM Support of Unverified media, as well as test scenarios detailing each setup and how DSM handles it, you can read it HERE in my Test Article.

How has the verification process changed for which drives you can use on Synology systems moving forward? And are there drive options from WD and Seagate currently undergoing support verification?

Answer – At Synology, we constantly reflect on a core question: Why do people choose a NAS? We believe the answer lies in the need for secure, reliable, and hassle-free data storage. This belief has guided our mission for over a decade. When analyzing our support history, the data clearly shows that systems using Synology-branded drives experience 40% fewer issues compared to those with third-party HDDs. This insight underscores the importance of using thoroughly tested drives. As for which third-party vendors are currently undergoing drive verification, we’re unable to disclose details. For the most accurate and up-to-date information, we recommend reaching out directly to the respective manufacturers.

The response positions Synology’s verification changes as a reliability-focused initiative and smooth platform running as the chief reasoning for them, referencing internal data that suggests a 40% reduction in support issues when Synology-branded drives are used. However, as mentioned previously, the statement does not provide supporting metrics such as sample size, timeframes, or specific failure modes, making it difficult to assess the scope or significance of this claim. I do not doubt that it is true, but without the X/Y and details of how this result was achieved, we are only getting half the story here.  The policy shift is framed as a precautionary measure aimed at minimizing user disruption, but the absence of transparency regarding ongoing verifications with WD or Seagate limits clarity for users seeking alternatives – which is why users are seeing this more as a means for the brand to increase profitability in the 2025 series as a bundled utility purchase – not as a means of system stability.

Ultimately, discussing the technical standards or benchmarks involved in the verification process in paramount here. It largely confirms that responsibility for future third-party compatibility lies with the drive manufacturers themselves, effectively shifting the onus of transparency to them. While it is understandable that Synology might want to mitigate support complexity, the lack of specificity about how the verification criteria have evolved or what steps vendors must follow leaves key questions unanswered for both users and third-party storage providers. I reached out to representatives from Seagate and WD to see if they could elaborate further on this new media side verification process with their respective NAS/Server class media – neither was able to provide further details at this time.

UPDATED 07-05-25 = Added Unverified HDD and SSD (Migrated) Storage Pool RAID Repair, RAID POOL Expansion and Hot Spare Tests. Right now, the following is what works and what does not (between pre-2025 Series and the 2025 Series that is releasing now):

Feature / Function	Pre-2025 Synology NAS<br>(e.g., DS1821+, DS920+, DS923+)	2025 Synology NAS<br>(e.g., DS1825+, DS925+, DS1525+)
DSM Installation – Verified Drives	Full support	Full support
DSM Installation – Non-Verified Drives	Allowed (with warnings)	Blocked completely
Drive Migration (Non-Verified Drives)	Fully functional, minor alerts	Works, but shows persistent warnings
Storage Pool Creation – Verified Drives	Fully supported	Fully supported
Storage Pool Creation – Non-Verified Drives	Allowed (with warnings)	Blocked
Storage Pool Expansion – Verified Drives	Fully supported	Fully supported
Storage Pool Expansion – Non-Verified Drives	Allowed (mixed arrays supported)	Blocked – drives flagged as incompatible
Hot Spare Assignment – Verified Drives	Fully supported	Fully supported
Hot Spare Assignment – Non-Verified Drives	Allowed	Blocked
RAID Recovery – Verified Drives	Supported	Supported
RAID Recovery – Non-Verified Drives	Supported	Blocked – system will not rebuild with unverified media
M.2 NVMe Cache – Synology SSDs	Supported	Supported
M.2 NVMe Cache – 3rd Party SSDs	Supported	Blocked
M.2 NVMe Storage Pools – Synology SSDs	Not supported	Supported
M.2 NVMe Storage Pools – 3rd Party SSDs	Not supported	Blocked
SMART Monitoring – Verified Drives	Full support	Full support
SMART Monitoring – Non-Verified Drives	Full support	Limited or blocked (TBC)
Storage Manager Alerts – Non-Verified Drives	Warnings, dismissible	Persistent, cannot be cleared
Overall Compatibility Flexibility	High – mix-and-match drives allowed	Low – walled-garden enforcement

Users are able to migrate existing storage arrays that feature Unverified/unsupported drive media in previous Synology systems into 2025 Plus series devices and still use DSM services – however once they do so, they are unable to use the same model ID of drives to perform RAID recovery, RAID expansion or introduced a hot spare, unless that drive is on the verified drive list. Why is this?

Answer- Advanced operations such as RAID recovery, expansion, or hot spare assignment are technically intensive and carry a higher risk of data loss if inconsistencies arise. Drives that haven’t been validated through Synology’s verification process may behave unpredictably under stress, impacting array stability or performance. For this reason, support for these functions is limited to verified drives—a precaution designed to safeguard user data and maintain long-term system reliability.

So, this answer outlines Synology’s rationale for restricting critical RAID operations on unverified drives and It emphasizes the increased risk associated with advanced storage operations, particularly when performed on drives that may not have been tested under stress or fault conditions. The justification focuses on data integrity and system reliability, suggesting that verified drives have undergone stress testing scenarios that others have not. However, the lack of granularity in what defines “unpredictable behavior” makes it difficult to independently evaluate the severity or frequency of these issues. Much like the statistics point earlier, this seems a remarkable stretch in terms of reaction to what many users would consider a very, very low % risk factor. Equally, though there is an argument that some drive media is less suitable for NAS usage (eg the WD Red SMR drives, desktop single drive use media like Seagate Barracuda and high power draw HDDs/SSDs in some cases), these make up a very small % of drive media in the market and using this as a reasoning to effectively bar the continued support of drive media that has been supported/used in Synology server use over the last 2 decades to prevent RAID recovery and Expansion in the latest gen for those carrying them over seems insane overkill.

The policy effectively limits upgradability and flexibility in mixed-drive environments. While it is technically reasonable to restrict risky operations on unvalidated components, the ability to migrate but not expand or rebuild a RAID introduces a half-measure — allowing users to enter unsupported configurations while restricting them mid-cycle. The result is a system state that may appear functional at first but ultimately lacks key functionality unless users conform to the verified list. For long-term users upgrading from older systems, this shift can lead to unexpected limitations without adequate warning, particularly in small or home office deployments. The messaging has been poor and though I made a video about these limitations (embedded above), there is practically no other clear and transparent information about this online (with incongruous detailson the Synology Knowledge base that could stand to be a lot clearer and louder).

HOT TAKE, and hear me out – If Synology do not allow support of RAID repair/Expansion on drives that have been migrated over from older NAS systems where the drives WERE originally supported (unless they use 2025 verified drives) because of reasons of stability, I have a somewhat extreme suggestion. As unpopular as it might have been, Synology should have just BARRED the support of migration from older generation Synology NAS devices with unverified drives entirely. I personally think they should have allowed for RAID repair/Expansion of unverified drives, but if they are going to pursue this for reasons of system stability, they should have committed to this fully and not allowed this grey area with migration. As it just looks bad for the brand, as means of ensuring people can upgrade/remain in the ecosystem, but then have limited scalability when those older drives require replacement/growth.

Were pre-populated Synology NAS devices considered, given the strict verified support stance that this new Synology hardware generation contains?

Answer – Regarding pre-populated NAS solutions, there hasn’t been significant internal discussion or a formal strategy around this model. As such, I don’t have a concrete answer at this time. The focus remains on ensuring that any storage media used—whether user-installed or bundled—is fully verified to meet Synology’s reliability standards.

Not much to unpack here. It makes sense. I imagine they DID discuss this as an option (as they are already engaging with this with systems like the Beestation), but at least for now, it seems off the table. As unpopular as this might have been, in some ways it could have solved a lot of this friction for some users. Provide the 2025 PLUS series as an empty/enclosure-only solution with similar compatibility as the 2024 and earlier generation – but then also supply several pre-populated options that feature Synology drive media as standard. However, that would be a different discussion entirely (eg logistics, SKUs, viability, ROI by offering this alongside flexible options).

Can you provide example(s) of critical system issues that using unverified drives caused, that were the tipping point for this new strict HDD support policy?

Examples of what stepped up our verification process moving forward:

Performance Issues: Unverified drives may function under light workloads but can suffer serious performance drops (e.g., IOPS decline) under multi-user access or when running demanding services like virtualization, backup, or databases. This can lead to poor user experience or service disruptions (e.g., iSCSI timeouts).

Stability Risks: Without thorough testing, unverified drives are more prone to failures under stress conditions such as unexpected power loss or long-duration file transfers—leading to timeouts, reboot failures, or data integrity issues in high-load or long-term operations.

Compatibility Problems: Drives not validated for compatibility may show unstable behavior with certain NAS controllers, resulting in drive drops, RAID instability, or data access interruptions over time.

Advanced Feature Failures: Unverified drives may fail during operations like SMART testing or Secure Erase, especially after unexpected power outages. Some drives may not respond properly under frequent access or specific command sets, affecting system stability.

Drive Failures Under High Load or Density: Some drives may become unresponsive under high data density or I/O intensity, with issues persisting even after a reset.

The examples provided by Synology highlight a variety of operational issues associated with unverified drives, most of which relate to performance degradation, system instability, or failure of advanced features under stress. These scenarios focus on workloads involving sustained I/O, power fluctuations, and controller-level interactions. In isolation, many of the issues described are plausible for lower-tier or unsuitable drive models, particularly in demanding or enterprise-like environments. That said, that are very low margins (eg 0.01% or lower) when you look at the traditional deployment of many Synology NAS solution in the Plus series. Again though, the scale and frequency of these issues remain unclear. There is no indication of how widespread such failures are across Synology’s user base, nor whether they represent rare edge cases or common occurrences. The examples also apply more logically to enterprise or high-density configurations, whereas the same strict policies now affect all tiers — including two-bay and four-bay systems used by home and prosumer users. Without concrete statistics or clearer thresholds, it is difficult to assess whether these issues justify the breadth of the policy. The policy appears to target potential worst-case scenarios, but may have broader consequences for user flexibility than the risk profile necessarily warrants.

Additional Information and Details from the MyBroadband Article

Further context on Synology’s new drive compatibility policy was provided in an interview between MyBroadband journalist Daniel Puchert (click to read) and Michael Chang, Synology’s Regional Sales Manager. The discussion reinforced many of the points raised during the HQ visit, while also offering additional information into the motivations behind Synology’s stricter approach to drive support in their latest generation of NAS systems. Chang explained that Synology’s primary objective was to ensure product reliability and reduce system-level faults that were increasingly traced back to third-party hard drives. According to Chang, complaints received by Synology often involved third-party drive issues, yet Synology would still be held accountable by users due to their role as the NAS provider. This prompted the company to centralize responsibility and tighten control over supported hardware configurations. While Synology-branded drives are currently the only models certified, Chang noted that other vendors are being invited to participate in the compatibility validation program — provided they meet the same testing standards.

(In the case of the NAS drives) “..because Synology’s product would typically facilitate the usage of third-party hard drives, it would also be the scapegoat for any faults with the entire system.”

“..complaints received by Synology regarding issues relating to its NAS devices were most often caused by faulty hard drives.

“severe storage anomalies have decreased by up to 88%” for hard drive models that have adopted its hard drive compatibility policy, compared to older models.”

“We still welcome third parties to join Synology’s ecosystem and have invited vendors to join our validation program,”

Michael Chang, Synology Regional Sales Manager – full article HERE

The article also mentioned that Synology-certified drives undergo over 7,000 hours of testing, and systems using those drives reportedly experience 40% fewer failures than those using uncertified media. Additionally, Synology claims that severe storage anomalies have dropped by up to 88% in systems following its compatibility policy. Although Chang confirmed that third-party compatibility may expand in the future, it will only do so under strict adherence to Synology’s internal benchmarks. These statements align with Synology’s position during the HQ tour, further emphasizing a shift toward a closed, highly controlled ecosystem that prioritizes consistent performance over hardware flexibility.

Synology and HDD Support and Verification – Conclusion and the Long Term

My biggest issue with all this is that, almost certainly, we are going to see Seagate, WD, Toshiba and more slow (slooooooooowly) appear on the compatibility lists for a number of the 2025 generation of devices over the coming months. So, what was all this for? The PR damage and likely early sales damage of the Synolgoy 2025 Series because of this change of support I would estimate is going to be pretty substantial – and all the reports and reactions to this online are not going to go away as soon as a Seagate Ironwolf or WD Red drive appears on the support lists. Also, Synology work on these devices for a very, very long time before launch – why is all this happening now – and not before launch. The cynic in me wants to just assume it was pure profitability and that Synology want to maximize profits, and if when this does begin to U-Trun ,that the brand can say that it was the plan all along. But whether that is true or not, the damage to the brand in the eyes of a substantial % of their long term fans is notable, and with many more players in the market (UniFi, QNAP, UGREEN and more) launching new products in Q3 and Q4 – is this all going to be a gamble by the brand that ends up costing them more than just leaving the support status quo where it was? Only time will tell.

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We use affiliate links on the blog allowing NAScompares information and advice service to be free of charge to you. Anything you purchase on the day you click on our links will generate a small commission which is used to run the website. Here is a link for Amazon and B&H. You can also get me a Ko-fi or old school Paypal. Thanks! To find out more about how to support this advice service check HERE   If you need to fix or configure a NAS, check Fiver   Have you thought about helping others with your knowledge? Find Instructions Here  

WE LOVE COFFEE

Or support us by using our affiliate links on Amazon UK and Amazon US