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UniFi UNAS Pro 4 NAS Review

Review of the UniFi UNAS Pro 4 NAS – Possibly the Best Value 1U Rack Ever?

Over the last 18-24 months, Ubiquiti has shifted the ‘UniFi’ label from being a networking and bridging ecosystem into a wider storage hardware and software platform that now includes a steadily expanding NAS line under UniFi Drive. Early UniFi UNAS storage products leaned heavily on simple file sharing and basic backup, but the pace of updates and the broader product rollout in 2025/2026 pushed the range closer to what small business buyers expect from an entry level NAS platform: clearer storage management, stronger snapshot and backup tooling, and tighter integration with the UniFi account and identity layer for remote access and user control (with the recent Drive 4.0 Update really uping their game considerably). The UniFi UNAS Pro 4 sits within that context as a compact 1U, 4 bay rack mount system designed mainly for file storage and sharing over SMB and NFS, rather than running third party applications, containers, or virtual machines. At $499, it is priced noticeably lower than many competing 1U rack NAS products at broadly comparable “headline” hardware, particularly where dual 10Gb networking and NVMe caching are concerned, which makes it hard to ignore if the goal is simple, high bandwidth storage in a rack footprint without moving into significantly higher spend.

UniFi UNAS Pro 4 Review – Quick Conclusion

The UniFi UNAS Pro 4 is a 1U, 4 bay rack mount NAS aimed at straightforward SMB and NFS file storage, and its main differentiator is value: at $499 it undercuts many comparable 1U rack units while still offering 2x 10Gb SFP+ plus a separate 1GbE management port, 4 hot swap bays for 3.5 inch or 2.5 inch drives, and 2 M.2 NVMe slots for read and write caching. In testing with 4 HDDs in RAID 5 over 10GbE, it delivered strong real-world file transfer results for a small SATA array, with synthetic benchmarks showing high peak throughput but some variability depending on the tool used, and the platform’s power draw and noise profile were heavily influenced by drive choice and fan mode, including very loud output if maximum cooling is forced. UniFi Drive covers the core fundamentals expected at this level, including snapshots, encrypted volumes, and a wide range of backup targets (NAS, SMB, and multiple cloud services, with Microsoft 365 direction evident in recent updates), but the interface still limits deeper tuning in places and the feature set remains focused on storage rather than apps. The main downsides are structural and easy to identify up front: NVMe can only be used for cache rather than storage pools, the NVMe carriers are an extra purchase, there are no USB ports for local copy tasks, the PSU is internal and not a hot swap module, and missing features like iSCSI, ECC, and RAM upgradability place a clear ceiling on more advanced workloads, though those trade-offs are broadly consistent with a $499 ‘turnkey’ NAS appliance in 2026 though and hard to criticise!

BUILD QUALITY - 9/10
HARDWARE - 7/10
PERFORMANCE - 7/10
PRICE - 9/10
VALUE - 10/10


8.4
PROS
👍🏻Dual 10Gb SFP+ networking is unusual in a 1U 4 bay NAS at this price point + failover will not result in bandwidth throttle
👍🏻A separate 1GbE port is useful for management or fallback connectivity
👍🏻1U chassis with relatively short depth is easier to fit in smaller racks and cabinets
👍🏻Rails and rack hardware included, reducing extra setup cost and friction
👍🏻Ubiquiti and UniFi online/brand services are optional (i.e pure offline/LAN is possible)+ no need for a Ubiquiti/UniFi network setup to use
👍🏻NVMe read and write caching support can improve responsiveness in mixed workloads
👍🏻UniFi Drive provides snapshots, encryption, and a broad set of backup targets (NAS, SMB, and multiple cloud providers)
👍🏻Setup and management are streamlined, especially for users already running UniFi infrastructure
👍🏻Drive 4.0 Update scales up the Business Utilities notably
CONS
👎🏻NVMe is cache only, with no option to use M.2 drives as primary storage pools
👎🏻NVMe trays or carriers are not included, adding extra cost and an extra purchase step
👎🏻Single PSU (no redundency) and non-slide removable SFX/ATX PSU (relies on propriatary UniFi Battery Backup rack module or external UPS)
👎🏻No NAS Expansion Support, so 4 HDDs are your limit

Here are all the current UniFi NAS Solutions & Prices:
  • UniFi UNAS Pro 4 (4 Bay + 2x M.2, $499) – HERE
  • UniFi UNAS 2 (2 Bay, $199) – HERE
  • UniFi UNAS 4  (4 Bay + 2x M2, $379) – HERE
  • UniFi UNAS Pro (7 Bay, $499) – HERE
  • UniFi UNAS Pro 8 (8-Bay + 2x M.2, $799) HERE

You can buy the UniFi UNAS Pro 4 NAS via the link below – doing so will result in a small commission coming to me and Eddie at NASCompares, and allows us to keep doing what we do! 

 

UniFi UNAS Pro 4 Review – Design & Storage

The UNAS Pro 4 uses a conventional 1U rack mount layout, with a plain, functional front panel and an all metal enclosure intended for permanent installation rather than desktop use. It ships with rails and rack handles, which removes the usual extra step of sourcing mounting hardware separately. The chassis depth is about 400 mm, so it is not in the “full depth server” category, and that helps in smaller cabinets where rear clearance and cable management space can be limited.

Across the front are 4 hot swap bays supporting both 3.5 inch and 2.5 inch SATA drives. The trays are set up for tool-less 3.5 inch HDD installation with a click-in fit, while 2.5 inch SSDs still require screws to secure them properly. Each bay has status lighting, and the front panel also provides system level indicators so you can identify basic state and drive activity at a glance without logging into the interface. The trays feel rigid and spring-loaded, but they are not lockable, which is a practical consideration if the unit is placed in a shared rack or anywhere physical access is not strictly controlled.

From a capacity and planning perspective, this system is defined by its fixed 4 bay layout. You can configure a conventional RAID group within those bays, but there is no built-in path to scale beyond the internal slots, and there is no supported external expansion shelf option to push the same chassis further later on. That means the decision on drive sizes and redundancy level matters upfront, because the ceiling is reached quickly compared with higher bay count rack units. In a small rack deployment, it also means the unit is either a compact standalone store or part of a broader multi-NAS approach rather than a single box that grows over time.

In addition to the SATA bays, the chassis supports 2 M.2 NVMe slots intended specifically for SSD caching. The caching model is designed to accelerate HDD-based storage by using SSDs as a performance layer, rather than allowing NVMe drives to become their own primary pool for general file storage. Practically, that positions the NVMe feature as a supplement for mixed workloads, such as improving responsiveness for frequently accessed data and smoothing write behavior, rather than a route to running the system as a small all flash NAS.

A design detail that affects the storage experience is the physical NVMe mounting method. Instead of a simple screw-down slot on a board, the NVMe drives are installed via a tray or carrier mechanism, and that carrier is not included with the base unit. The carrier itself is neatly engineered with a clip-in style insertion and thermal padding, and it supports common M.2 lengths including 2280 and 22110, but requiring an additional part adds friction if caching is part of the plan from day 1. It is a small issue, but it is the kind of detail that can slow down an otherwise straightforward deployment.

UniFi UNAS Pro 4 Review – Internal Hardware

The UNAS Pro 4 is built around a quad core ARM Cortex-A57 CPU clocked at 2.0 GHz and paired with 8 GB of memory, which sets expectations for the type of workloads it is designed to handle. This is not a platform aimed at heavyweight compute tasks, but for file services and scheduled backup activity it has enough headroom to keep the system responsive, particularly when multiple users are accessing shared folders and snapshots are being taken in the background.

The CPU choice also reflects a focus on predictable appliance behavior and lower overall platform complexity rather than maximum expandable performance.

Internally, the power system is a single 150 W unit mounted inside the chassis rather than a hot swap module, which influences servicing and downtime planning. If the PSU fails, replacement is more involved than swapping an external canister, and that is a meaningful difference compared with rack systems that use easily replaceable redundant modules.

The unit does, however, support UniFi’s USP-RPS DC input as an alternative redundancy method, which changes the redundancy approach from “dual PSU in the chassis” to “centralized redundant supply for multiple devices,” with different trade-offs in cost, cabling, and rack layout.

A further internal design choice is how the system treats its software environment as a dedicated appliance rather than an OS sharing space with user storage. The system software runs on its own internal storage rather than living on the same disks that hold your data. In practical terms, that reduces the chance of the OS being affected by changes to the main array, and it can make maintenance tasks like drive replacement or pool rebuilds feel more self-contained, because the unit remains manageable even while the primary storage is under stress.

ARM-based NAS platforms typically bring some efficiency advantages, and this model follows that general pattern. The CPU class and memory configuration are aligned with lower baseline overhead than many x86 NAS designs, which can help keep idle draw and sustained power use in check relative to equivalent rack hardware, though drive choice still dominates the total. The trade-off is a lower performance ceiling compared with modern x86 systems for certain workloads, plus the usual limitations seen in this category: no practical RAM upgrade path, no ECC support, and fewer options for buyers who want to push beyond file services into heavier compute. At $499, those omissions are consistent with the target price bracket in 2026 rather than being unexpected corner cutting.

UniFi UNAS Pro 4 Review – Ports and Connections

The rear connectivity is centered on 2x 10Gb SFP+ ports, and that is the defining hardware choice for this NAS in a 1U, 4 bay format. It allows the unit to be placed into a 10Gb environment without adapters, and it also opens up practical options beyond raw throughput, such as separating traffic types, connecting into different switches, or keeping a second path available for failover. The choice of SFP+ over 10GBase-T will suit users already running fiber or DAC links in a rack, but it can be less convenient for small setups built around copper RJ45.

Alongside the 10Gb ports is a separate 1GbE RJ45 port that can be used for management or for general connectivity in networks where 10Gb is not available everywhere. In a mixed UniFi environment, this is useful because it avoids tying basic onboarding and administration to a 10Gb port that might be better reserved for file traffic. It also gives a simple fallback path for access and troubleshooting if the 10Gb side is being reconfigured, moved between switches, or temporarily taken offline.

What is missing is just as relevant as what is included. There are no USB ports for quick ingest, offline copy tasks, or attaching temporary media, which some rack NAS platforms still provide for convenience even in 1U designs. Wireless is not a focus here, though Bluetooth is present for initial setup workflows, which fits the product’s “appliance onboarding” approach more than it does ongoing connectivity. The result is a port layout that prioritizes network-first storage and rack integration, while leaving out local expansion and quick-access I/O features that some users expect on a NAS.

However, (and I am sounding like a broken record at this point) at $499, these ports and connections are a notable degree more than most other turn-key NAS solutions from Synology, QNAP and even Terramaster (the more budget end of the NAS market already) are offering at under 500! So, what is presented here is a great value Day 1 solution in terms of base connectivity, but there is no denying that it might well feel the pinch in 5 years down the road when your storage is filling and your storage speeds begin to bottleneck vs your other equipment bandwidth.

UniFi UNAS Pro 4 Review – Testing Noise, Temps, Power Consumption & Speed

Performance here needs to be framed around the physical limits of 4 SATA bays and the role of SSD caching. Even with dual 10Gb networking available, a 4 drive HDD array has a throughput ceiling that will be reached long before the network becomes the bottleneck in most single-client scenarios. The value of 10Gb in this context is less about hitting theoretical maximums and more about maintaining higher transfer rates consistently, handling multiple simultaneous users, and keeping latency lower when lots of smaller operations are happening alongside big file moves.

In testing with 4 HDDs in a RAID 5 configuration over a 10Gb link to a Windows 11 client, measured throughput landed in the range expected of a well-tuned 4 disk array. Using AJA with a repeated 1 GB test file, results sat around 680 to 730 MB/s for download and 520 to 600 MB/s for upload. A real-world Windows file transfer of 101 GB made up of 1,231 mixed files completed in 3 minutes and 57 seconds, which works out at an average of about 426 MB/s across the transfer, reflecting the usual drop from synthetic peak results when file variety and filesystem overhead are introduced.

Synthetic benchmarking results varied depending on the tool used, which is not unusual when caching behavior and test patterns differ. CrystalDiskMark with a 1 GB test file reported 353 MB/s read and 429 MB/s write in this run, with write coming out higher than read, which is atypical enough to treat as an outlier pending further retesting. ATTO produced stronger peak figures of 860 MB/s read and 570 MB/s write at the top end, which aligns more closely with the best-case behavior seen in sequential-focused tests on multi-drive arrays.

Noise, power draw, and thermal behavior were also measured because they affect rack placement and operating cost. With the fan profile set to auto and drives idle, noise sat around 42 to 44 dBA, dropping to roughly 38 to 40 dBA in the lowest RPM mode. Manually forcing maximum cooling pushed noise to around 56 to 57 dBA, and that level remained dominant even when drive activity increased, suggesting the cooling system prioritizes aggressive airflow when pushed. Power consumption with 4 enterprise HDDs measured roughly 49 to 50 W at idle and 60 to 62 W under activity, while swapping to 4 SATA SSDs reduced that to around 32 W during synchronization, underlining how drive choice can change the overall profile as much as the base platform.

UniFi UNAS Pro 4 Review – Software and Services

The UNAS Pro 4 runs UniFi Drive and is managed through the same style of web interface used across the broader UniFi portfolio, with system status, storage, backups, and user access presented in a single dashboard. For basic NAS use, the core functions are in place: creating storage pools, managing shares, enabling file services, and monitoring drive health. The interface is generally structured around doing common tasks quickly rather than exposing every possible tuning option, which keeps setup approachable but also limits deeper control in areas that some experienced NAS users look for.

File access is centered on SMB and NFS, with browser-based file management available for basic upload, download, and folder navigation. The browser file manager covers the essentials and includes sharing link creation, but it is not positioned as a full productivity layer with advanced file handling or rich collaboration features. Remote access and identity-based access tools are tied into UniFi’s account and identity layer, and while local-only deployment is possible, the most integrated remote workflow is clearly designed around UniFi’s own services rather than third party remote networking tools.

Storage protection features include snapshot support, encrypted volumes, and configurable retention policies, which addresses most common rollback and recovery needs for file storage. Backup tooling covers several targets, including backing up to another UniFi NAS, to SMB targets, and to cloud services such as Google Drive, OneDrive, Dropbox, Amazon S3, Backblaze B2, and Wasabi, with Microsoft 365 backup support also part of the broader UniFi Drive direction. These features reflect the brand’s recent focus on strengthening data protection rather than expanding into application hosting or media server style functionality.

The gaps are consistent with the product’s current scope. There is no iSCSI target support, which limits certain virtualization and block-storage workflows, and there is no container or VM layer for running third party services directly on the NAS. NVMe usage remains limited to caching rather than becoming its own storage pool, which narrows the performance paths available if the goal is to build a small all-flash volume.

Client-side tooling is also still limited compared with platforms that provide a dedicated sync-and-pin application, with access leaning on standard network shares and UniFi’s identity-driven access methods rather than a full drive-style client experience.

UniFi UNAS Pro 4 Review – Conclusion & Verdict

The UNAS Pro 4 is a focused 1U, 4 bay NAS that prioritizes networked file storage and straightforward deployment over broader application support. The hardware choices align with that goal: dual 10Gb SFP+ connectivity, 4 hot swap bays, and optional NVMe caching provide a platform that can deliver strong file transfer rates for a small array, while the ARM-based design keeps the system positioned as an appliance rather than a general-purpose server. Its main compromises are largely structural rather than hidden: fixed bay count with no expansion path, NVMe limited to cache, no USB I/O for local tasks, and a single internal PSU rather than a hot swap redundant design.

At $499, the value case is driven by how much rack-oriented networking is included at a price that undercuts many comparable 1U NAS systems, especially those offering 10Gb as standard. The software is usable for core storage tasks and has clearly improved over the last year in areas like snapshots and backup targets, but it still leaves out features that matter to some buyers, including iSCSI and a fuller client sync experience. For users who want a compact rack NAS primarily for SMB or NFS file storage with modern backup and snapshot features, it fits its role well; for users expecting a broader NAS app ecosystem or more hardware serviceability, the limitations are likely to be decisive. But, as Delboy once said, at this price, “what do you want? Jam on it?”. This system is giving more at this price than anyone else right now and for its limitations, for many these will be paletable in the grand scheme of things. 1U 4Bay rackmounts has always been something that most turnkey NAS brands treat poorly, due to the low saturation point of four SATA drives and why waste more capable hardware on that? In that sense, Ubiquiti is really piling on the hardware here at this price – and I for one applaud this.

Here are all the current UniFi NAS Solutions & Prices:
  • UniFi UNAS Pro 4 (4 Bay + 2x M.2, $499) – HERE
  • UniFi UNAS 2 (2 Bay, $199) – HERE
  • UniFi UNAS 4  (4 Bay + 2x M2, $379) – HERE
  • UniFi UNAS Pro (7 Bay, $499) – HERE
  • UniFi UNAS Pro 8 (8-Bay + 2x M.2, $799) HERE

You can buy the UniFi UNAS Pro 4 NAS via the link below – doing so will result in a small commission coming to me and Eddie at NASCompares, and allows us to keep doing what we do! 

PROs of the UniFi UNAS Pro 4 NAS PROs of the UniFi UNAS Pro 4 NAS
  • Dual 10Gb SFP+ networking is unusual in a 1U 4 bay NAS at this price point + failover will not result in bandwidth throttle

  • A separate 1GbE port is useful for management or fallback connectivity

  • 1U chassis with relatively short depth is easier to fit in smaller racks and cabinets

  • Rails and rack hardware included, reducing extra setup cost and friction

  • Ubiquiti and UniFi online/brand services are optional (i.e pure offline/LAN is possible)+ no need for a Ubiquiti/UniFi network setup to use

  • NVMe read and write caching support can improve responsiveness in mixed workloads

  • UniFi Drive provides snapshots, encryption, and a broad set of backup targets (NAS, SMB, and multiple cloud providers)

  • Setup and management are streamlined, especially for users already running UniFi infrastructure

  • Drive 4.0 Update scales up the Business Utilities notably
  • NVMe is cache only, with no option to use M.2 drives as primary storage pools

  • NVMe trays or carriers are not included, adding extra cost and an extra purchase step

  • Single PSU (no redundency) and non-slide removable SFX/ATX PSU (relies on propriatary UniFi Battery Backup rack module or external UPS)

  • No NAS Expansion Support, so 4 HDDs are your limit

 

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UniFi UNAS Series of NAS Devices – 12 Months Later, Should You Buy One?

UniFi UNAS – 1 Year Later. Should You Buy Now?

It has now been one full year since Ubiquiti made its formal debut in the NAS market with the launch of the UniFi UNAS Pro, a 7-bay rackmount storage system designed to integrate seamlessly within the existing UniFi ecosystem. At launch, the device was seen as a bold but limited step into a space traditionally dominated by established brands such as Synology and QNAP, focusing more on straightforward network storage than application-heavy server functions. Over the following twelve months, the company has steadily expanded the UNAS lineup and rolled out numerous firmware and software updates, refining its NAS operating system, UniFi Drive, and addressing user feedback gathered through real-world testing. From introducing multiple new RAID configurations, encryption, fan control, and USB backup capabilities, to expanding cloud backup support and improving system responsiveness, UniFi has demonstrated a consistent approach to building out the platform incrementally rather than replacing hardware prematurely. Today, the UNAS family includes five systems spanning both desktop and rackmount designs, with capacity options ranging from 2-bay PoE-powered units to 8-bay multi-10GbE solutions. Taken together, these changes illustrate a deliberate evolution of UniFi’s NAS portfolio from a proof of concept into a structured, multi-tier ecosystem with increasing competitiveness in the storage market.

Here are all the current UniFi NAS Solutions & Prices:
  • UniFi UNAS 2 (2 Bay, $199) – HERE
  • UniFi UNAS 4  (4 Bay + 2x M2, $379) – HERE
  • UniFi UNAS Pro 4 (4 Bay + 2x M.2, $499) – HERE
  • UniFi UNAS Pro (7 Bay, $499) – HERE
  • UniFi UNAS Pro 8 (8-Bay + 2x M.2, $799) HERE

Unifi UNAS, 1 Year Later – THE TL;DR:

In a rush and just want the cold facts? Here’s a clear TL;DR breakdown of all major UniFi UNAS product and software changes over the past 12 months, based entirely on your three video transcripts (3 months, 6 months, 1 year). It captures both software and hardware evolution, along with remaining limitations and future signals.

Initial Launch (UNAS Pro, Oct 2024)

  • First UniFi NAS, priced at $499, 7-bay rackmount, ARM CPU, 10GbE networking.

  • Marketed as “pure storage” for UniFi ecosystem integration, not an app-rich NAS.

  • Praised for value, build quality, and easy setup.

  • Criticized for missing features: iSCSI, RAID 6, multiple pools, containerization, USB ports, UniFi Protect integration, and limited cloud backup (Google Drive only).

  • Early software lacked advanced admin control, backup management, and multi-user oversight.

  • SMB performance and file integrity inconsistencies appeared during large data transfers.

  • Frequent backend updates released in first quarter, addressing GUI layout, alignment, and minor stability fixes.


3-Month Mark (Jan 2025)

  • Rapid patching cycle began: RAID 6 added, marking UniFi’s first major new feature.

  • Ongoing bugs fixed in the Drive OS interface and file manager.

  • Still missing key functionality like iSCSI and multiple pools.

  • Admin-level restrictions persisted; super admins could not manage user backups.

  • File browser inconsistencies fixed only partially (e.g., trash handling, SMB sync).

  • Backups limited to other UNAS or Google Drive, no AWS or S3 options yet.

  • Users frustrated by Safari bug (incomplete file downloads on iPhone, later acknowledged by UniFi).

  • Performance still below expectations on large SMB transfers; memory leaks and “skipped file” issues noted.

  • Despite flaws, praised for value and ongoing support rather than abandonment.


6-Month Mark (Apr 2025)

  • Software maturity improving, most updates focused on stability rather than new features.

  • RAID 6 officially released across all devices, with migration tools from RAID 5 + hot spare.

  • New cloud backup options: Dropbox and OneDrive added.

  • Admin control improved: super admins could now manage user backups and shared drives.

  • File sharing responsiveness and accuracy improved significantly in the GUI.

  • New file activity monitor added, showing per-folder change history.

  • Apple Time Machine backups now officially supported.

  • Fixed .exe execution issue when accessed via SMB.

  • Ongoing quality-of-life improvements: faster interface, better consistency, fewer sync issues.

  • Remaining issues:

    • Still no iSCSI, no fan control, no scheduled power management, and occasional temperature irregularities.

    • GUI bug showed 20,000 days uptime (fixed later).

  • System temperatures remained high (~68–72°C CPU under light load), highlighting poor thermal automation.

  • No new NAS hardware yet announced at this point.


1-Year Mark (Oct 2025)

  • Major expansion: full UNAS lineup introduced.

    • UNAS 2: 2-bay PoE++ desktop ($199).

    • UNAS 4: 4-bay desktop with M.2 slots.

    • UNAS Pro 4: 1U rackmount, 4-bay, dual PSU support.

    • UNAS Pro 8: 8-bay, 3x10GbE ports, 2x M.2 slots ($799).

  • Core software improvements across all models:

    • Multiple RAID levels and hot-spare support expanded.

    • Multiple pools and clustered RAID pools introduced (first time UniFi allowed split or mixed pools).

    • M.2 NVMe caching added on larger models (read/write caching only).

    • Encrypted volumes now supported and integrated into backup routines.

    • Fan control added, both manual and automatic.

    • USB-C mounting and backup support for desktop models (UNAS 2, UNAS 4).

    • Expanded cloud backup integration (Google Drive, Dropbox, OneDrive).

    • Snapshot performance improved, faster rollback and lower latency.

    • SMB and NFS protocols optimized for better throughput and reduced latency.

    • Improved admin tools for shared drives and user management.


Software Features Added/Improved in UniFi UNAS in 12 Months

In the twelve months since the release of the original UNAS Pro, UniFi Drive OS has developed from a relatively simple file server interface into a more complete NAS management platform. Early releases of the Drive software offered only basic storage creation and sharing options, limited to single-pool RAID 5 or mirror configurations with few administrative tools. Over time, multiple key features have been introduced, including support for RAID 6, multiple storage pools, clustered RAID pools, and hot spare functionality, each of which was implemented through system firmware updates and confirmed through beta and public release candidates. The platform now supports encrypted volumes, user-defined snapshots, and restoration features, offering greater resilience and improved recovery options after system events or accidental deletions. These updates collectively mark a notable improvement in fault tolerance and customization, allowing the UNAS range to better serve both small business and advanced home deployments that require multiple storage tiers or redundancy strategies.

Beyond storage structure, UniFi Drive has also introduced new tools for day-to-day administration and external connectivity. Cloud backup support has expanded to include Dropbox, OneDrive, and Google Drive, replacing the early limitation to only local or UNAS-to-UNAS replication. Shared drive management now includes central administrative oversight, allowing super admins to configure and monitor user-level backup routines across all profiles. The graphical interface itself has become more responsive, adding a file activity monitor that provides timeline-based access logs for folders and files. Support for Apple Time Machine has been added, as well as improved handling of executable files via SMB, and overall network protocol efficiency has increased through back-end adjustments to Samba and NFS. With these refinements, UniFi Drive OS now feels less like an experimental branch and more like a unified part of the broader UniFi management ecosystem, with greater parity across its networking, surveillance, and storage products.

Feature Category Initial State (Oct 2024) Current State (Oct 2025) Improvement Summary
RAID Configurations Single RAID 5 / 1 RAID 0, 1, 5, 6, clustered pools Major redundancy and performance improvements
Storage Pools Single unified pool only Multiple pools with clustering Hot/cold data separation, flexible tiering
Encryption None Volume encryption supported Improved data protection and compliance
Snapshots Basic rollback Full timeline management Faster recovery and rollback precision
Backup Options Local & Google Drive Google Drive, Dropbox, OneDrive Wider offsite backup compatibility
Admin Control User-limited backups Central admin management Full oversight of shared and user drives
File Monitoring Absent Folder-based activity tracking Improved audit trail visibility
Time Machine Support Absent Full support Expanded Mac OS compatibility
SMB/NFS Performance Unoptimized Tuned with caching improvements Higher throughput, lower latency

Hardware Products Added/Improved in UniFi UNAS in 12 Months

Since the launch of the original UniFi UNAS Pro in late 2024, Ubiquiti has expanded the UNAS product line into a full hardware family, each model tailored for different deployment scales and power requirements. The first expansion arrived with the compact UNAS 2, a two-bay desktop NAS powered by PoE++, marking the brand’s first use of Power-over-Ethernet as a primary power source for network storage. This device, built around a quad-core ARM Cortex-A55 CPU and 4 GB of LPDDR4 memory, aimed to serve as a lightweight edge storage unit for small offices or UniFi network environments that rely on central power distribution. Its 2.5GbE connection and USB-C port (5 Gbps) provided moderate performance for local transfers and basic backup operations, while its non-hot-swappable dual-drive cage emphasized affordability over convenience. This smaller system demonstrated UniFi’s intent to create entry-level options that could still operate within their ecosystem while maintaining core integration with UniFi Drive OS and cloud management via ui.com.

The next step up in the product family is the UNAS 4, a four-bay desktop NAS that builds directly on the UNAS 2’s design but adds more flexibility. It retains the same ARM Cortex-A55 processor and 4 GB RAM, but introduces dual M.2 NVMe slots for SSD caching or storage expansion and four 3.5-inch SATA bays for larger arrays. It still uses 2.5GbE with PoE+++ as its main power and data input, though at the time of writing, UniFi has not confirmed if the final retail version will include a secondary Ethernet port for redundancy or faster link aggregation. This model brings the UniFi storage ecosystem closer to small business-level performance, allowing for RAID 6 redundancy and improved cooling through a refined chassis design. While compact, the inclusion of NVMe caching and full integration into UniFi Drive 3.3 makes it a practical choice for users who want local storage with minimal cabling and higher data throughput.

At the higher end, the UNAS Pro 4 and UNAS Pro 8 extend the lineup into the rackmount segment, reinforcing UniFi’s move toward professional and enterprise environments. The UNAS Pro 4 adopts a 1U form factor, supporting four 3.5-inch SATA drives and two M.2 NVMe slots, while maintaining the same ARM Cortex-A57 CPU and 16 GB LPDDR4 memory as its larger sibling. It also supports dual hot-swappable PSUs for redundancy and arrives with improved thermal airflow optimized for data center racks. The flagship UNAS Pro 8 offers eight 3.5-inch bays, two rear M.2 NVMe bays, and three 10GbE ports (one RJ45 and two SFP+), making it the highest-performing UniFi NAS to date. The system consumes up to 200W under load, uses Btrfs as the primary file system, and integrates the most comprehensive cooling and failover options in the UniFi NAS lineup. Together, these models illustrate UniFi’s full-tier hardware strategy: from PoE-powered desktop storage to rackmount systems supporting multi-gigabit networking and dual redundant power.

Model Form Factor Drive Bays CPU Memory Network Interface NVMe Support Power Method Key Features
UNAS 2 Desktop 2 x SATA (3.5″) Quad-Core ARM Cortex-A55, 1.7 GHz 4 GB LPDDR4 1 x 2.5GbE (PoE++) None PoE++ / 60W Compact PoE NAS, USB-C 5Gbps, LCD panel
UNAS 4 Desktop 4 x SATA (3.5″) Quad-Core ARM Cortex-A55, 1.7 GHz 4 GB LPDDR4 1 x 2.5GbE (PoE+++) 2 x M.2 NVMe PoE+++ Dual M.2, compact 4-bay, UniFi Drive 3.3 ready
UNAS Pro 4 1U Rackmount 4 x SATA (3.5″) Quad-Core ARM Cortex-A57, 1.7 GHz 16 GB LPDDR4 2 x 10GbE (RJ45 + SFP+) 2 x M.2 NVMe Dual PSU Redundant PSU, RAID 6, enterprise airflow
UNAS Pro 8 2U Rackmount 8 x SATA (3.5″) Quad-Core ARM Cortex-A57, 1.7 GHz 16 GB LPDDR4 3 x 10GbE (1 RJ45, 2 SFP+) 2 x M.2 NVMe Dual PSU 8-bay, clustered RAID, high throughput
UNAS Pro (2024) 2U Rackmount 7 x SATA (3.5″) Quad-Core ARM Cortex-A57, 1.7 GHz 16 GB LPDDR4 2 x 10GbE None Single PSU

Fixes, Changes and Improvements in UniFi UNAS in 12 Months

Over the past year, UniFi has steadily refined the UNAS operating environment, addressing a number of software and usability issues identified by early adopters of the original UNAS Pro. Many of these improvements were released through incremental firmware updates across both the Drive OS and UniFi Controller platforms. Among the most significant early fixes was the resolution of file handling inconsistencies between the built-in web file manager and SMB-based network access, which previously caused discrepancies when deleting or restoring data.

This issue, which affected synchronization between the NAS GUI and mapped network shares, has now been corrected. Similarly, early memory leak and permission errors during large-scale SMB transfers have been resolved through back-end optimization, reducing skipped files and improving overall data reliability. Updates to the system logs and storage integrity checks also brought clearer reporting of failed transfers and RAID rebuild activity, ensuring that users now receive consistent system notifications and warnings.

Another key focus for UniFi’s development team over the last twelve months has been user management, network integration, and environmental control. Earlier versions of Drive OS restricted backup operations to individual users, preventing the super admin from managing backups or schedules across the system. This has since been rectified, allowing full central backup management, while user permission hierarchies have been expanded to distinguish between local-only accounts, remote accounts, and enterprise identity-linked users.

Environmental improvements include the long-requested fan control interface, which gives users the option to manually adjust fan speeds or keep automatic control active depending on temperature thresholds. The addition of real-time thermal monitoring, more accurate CPU and drive temperature reporting, and improved resource graphs now make it easier to track system health. The Drive 3.3 release also introduced a refined GUI with more responsive dashboard elements, consistent data updates in the system console, and a correction to the long-standing uptime reporting bug that falsely displayed “20,000 days active.”

Area of Improvement Previous Limitation Current Status / Fix Impact
File Handling (SMB vs GUI) Files deleted via GUI not matching SMB state Unified file operations between interfaces Consistent data management
Memory & Transfer Errors Large SMB jobs skipped files, memory overflow Memory optimization and error logging fixes Improved reliability in large transfers
Admin Backup Control Admins could not manage user-level backups Centralized backup control added Easier global administration
Thermal & Fan Controls No manual fan speed control Manual and auto fan profiles integrated Better system cooling management
Temperature Accuracy Inconsistent CPU and drive readings Updated sensors and calibration More reliable thermal data
GUI Responsiveness Lag when creating shares or users Streamlined front-end caching Faster configuration changes
Uptime Reporting Displayed exaggerated uptime values Corrected uptime counter logic Accurate monitoring metrics
System Logs Limited data visibility Extended log detail for transfers and RAID rebuilds Clearer diagnostic insights

 

Missing Features and Planned Features in UniFi UNAS in the Next 12 Months

Despite significant progress since the launch of the original UNAS Pro, several key features are still missing from the UniFi Drive OS ecosystem. The most frequently requested addition from users continues to be iSCSI target and initiator support, a capability that would allow direct block-level storage mapping for virtual machines and professional applications. Its absence limits the UNAS series to traditional network file protocols such as SMB and NFS, which are less efficient for tasks requiring raw storage access or integration with virtualization platforms. Equally, the continued lack of RAID 0 support restricts high-performance users who are willing to trade redundancy for speed. While RAID 6 and clustered pools have been introduced, there is still no configuration option that prioritizes sequential throughput over redundancy. Another omission is a native UniFi Drive client tool for Windows, macOS, or Linux that would allow direct desktop synchronization, local file pinning, and on-demand streaming similar to Synology Drive or Dropbox. At present, users must rely on the web interface or manually mapped drives, which limits productivity and offline access.

Looking forward, UniFi has hinted through developer notes and recent firmware structure that the ENAS (Enterprise NAS) line will introduce ZFS file system support, marking a major shift toward high-end storage with data integrity and snapshot efficiency beyond Btrfs. This aligns with the observed trend of UniFi testing ZFS integration within their enterprise roadmap, possibly extending limited functionality to future revisions of the Pro 4 and Pro 8. The upcoming UniFi Drive 3.3 and 3.4 updates are also expected to expand fan and power scheduling, allowing users to define specific system on/off cycles and control Ethernet port activation schedules, effectively creating customizable air-gap routines. Additionally, UniFi’s roadmap includes exploring expansion connectivity, potentially leveraging unused 10GbE interfaces for network-based expansion enclosures or storage clustering between UNAS units. This would mirror the high-availability (HA) or expansion behavior of established NAS brands, though implemented entirely over the UniFi network layer.

UniFi is also expected to refine NVMe handling, particularly the ability to use installed M.2 drives as standalone storage pools rather than just as cache devices. The introduction of pool-level tiering and dynamic storage balancing could allow users to automatically assign workloads between SSD and HDD pools, improving I/O efficiency without manual adjustment. Beyond hardware-level improvements, there is ongoing demand for the integration of UniFi Protect within the NAS family, allowing video surveillance to run on the same physical storage units rather than on separate NVRs. Although UniFi has historically separated its Protect and Drive ecosystems, internal hardware similarities between the UNAS Pro and UNVR Pro systems suggest eventual compatibility is possible. Finally, more advanced backup filters, bandwidth scheduling, and automated snapshot policies are likely to appear in the next major OS iteration as part of UniFi’s effort to close the gap with traditional NAS brands while maintaining its minimalist network-first design approach.

Feature / Function Current Status Planned / Proposed Update Expected Benefit
iSCSI Support Not available Under evaluation for enterprise roadmap Block-level access for VMs and servers
RAID 0 Unsupported Potential inclusion in Drive 3.4+ High-speed sequential workloads
UniFi Drive Client App Not available Planned for 2026 Desktop sync and offline access
ZFS File System (ENAS) In development Expected on ENAS and future Pro models Greater data integrity and snapshot efficiency
Fan & Power Scheduling Manual control only Scheduled automation (Drive 3.3+) Energy savings, thermal management
10GbE Expansion Support Not implemented Proposed network-based expansion option Scale-out storage via UniFi network
NVMe as Storage Pool Cache-only Drive 3.4+ feature under testing SSD-only pools and tiering
UniFi Protect Integration Not supported Possible future overlap Unified surveillance and storage system
Backup Filters & Scheduling Basic inclusion/exclusion Enhanced filters and timed backups Greater control and efficiency

Conclusion and Verdict – Is the UniFi UNAS Good Now?

One year after the launch of the original UniFi UNAS Pro, the UniFi NAS platform has evolved from a single experimental product into a diversified ecosystem that spans both desktop and rackmount storage. The introduction of the UNAS 2, UNAS 4, UNAS Pro 4, and UNAS Pro 8 demonstrates that Ubiquiti is committed to building a scalable product range capable of serving both home users and small business environments. On the software side, the development of UniFi Drive OS has been steady and deliberate, with a focus on improving reliability, expanding RAID options, and tightening cloud and local backup integration. These changes, combined with improved temperature management, admin-level control, and performance tuning for SMB and NFS, have resulted in a more mature and dependable NAS experience than the early versions from 2024. However, the range remains deliberately streamlined, prioritizing simplicity and ecosystem integration over third-party app support or virtualization features.

Looking ahead, the next phase of the UniFi NAS roadmap appears to focus on deeper enterprise integration and feature parity with long-standing NAS brands. The likely addition of iSCSI, ZFS, and network-based expansion options will determine how far UniFi can move beyond entry and mid-range use cases. The hardware continues to rely on ARM processors rather than x86, which reinforces UniFi’s focus on efficiency and security but limits advanced workloads such as containerization and VM hosting. Even so, the value proposition remains strong, particularly given the aggressive pricing across the entire UNAS range and its seamless compatibility with the existing UniFi infrastructure. Overall, UniFi’s NAS systems are no longer a novelty—they represent a serious and rapidly developing branch of the company’s portfolio that has gained stability, utility, and confidence within just one year.

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Here are all the current UniFi NAS Solutions & Prices:
  • UniFi UNAS 2 (2 Bay, $199) – HERE
  • UniFi UNAS 4  (4 Bay + 2x M2, $379) – HERE
  • UniFi UNAS Pro 4 (4 Bay + 2x M.2, $499) – HERE
  • UniFi UNAS Pro (7 Bay, $499) – HERE
  • UniFi UNAS Pro 8 (8-Bay + 2x M.2, $799) HERE

 

 

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UGREEN NASync vs UniFi UNAS – Which Should You Buy?

UGREEN NASync vs UniFi UNAS – Which Should You Buy?

In the evolving landscape of network-attached storage, the arrival of UGREEN and UniFi (Ubiquiti) marks one of the more interesting shifts in consumer and prosumer data management over the last two years. Both brands, previously recognised for their strength in peripheral hardware and networking respectively, officially entered the NAS sector around late 2023 to early 2024, each taking distinct approaches to design, functionality, and ecosystem integration. UGREEN, following a successful crowdfunding launch in early 2024, built its NASync series around desktop and SSD-based solutions for home, creative, and prosumer users seeking all-in-one local storage, virtualization, and multimedia platforms. Its portfolio now includes systems ranging from the ARM-based DXP2800 to the Intel-powered DXP8800 Plus, offering performance tiers from modest home use to compact workstation-class environments.

Meanwhile, UniFi, a brand with a long history in professional networking and surveillance infrastructure, released its UNAS family within the same timeframe, targeting users already invested in its ecosystem of routers, cameras, and switches. The UNAS lineup now spans from the compact UNAS 2 and UNAS 4 desktop units to the rackmount UNAS Pro 4 and Pro 8 systems, with each designed for straightforward deployment and remote integration within the UniFi Network and Protect platforms. Despite arriving from very different sectors, both companies have effectively lowered the cost of entry to reliable NAS storage while redefining how integrated ecosystems can extend storage functionality. This comparison explores their respective design choices, hardware capabilities, software environments, and operational scope to assess which platform is best suited to different user scenarios in 2025 and 2026.

UniFi vs UGREEN NAS – The TL;DR

In comparing the UniFi and UGREEN NAS platforms, it becomes clear that each brand represents a different vision of what modern network storage should be. UniFi’s UNAS series builds on the company’s heritage in networking and surveillance, delivering a range of efficient, ARM-powered NAS systems that integrate tightly within the UniFi ecosystem. Models such as the UNAS 2, UNAS 4, UNAS Pro 4, and UNAS Pro 8 prioritize reliability, centralized management, and long-term stability rather than raw compute power or expandability. Their hardware is deliberately fixed—non-upgradable memory, ARM Cortex-A55 or A57 CPUs, and limited caching support for NVMe drives—but balanced by advanced network connectivity, including dual 10G SFP+ ports, PoE+++ power options, and redundant power supplies. UniFi’s storage OS focuses on core NAS fundamentals: multiple RAID levels, snapshots, encryption, and secure remote access via the UniFi controller. It is intentionally simple, relying on integration with other UniFi products for extended functionality such as surveillance and automation. In contrast, UGREEN’s NASync line follows an open, performance-driven approach designed for flexibility and standalone capability.

Ranging from the DXP2800 with its 8-core ARM processor to the flagship DXP8800 Plus powered by Intel’s i5-1240P, these systems cover every segment from entry-level home use to prosumer and light enterprise workloads. UGREEN’s hardware offers user-upgradable DDR4/DDR5 memory, PCIe expansion, NVMe storage pooling, and multi-gig connectivity, with higher-end models adding dual 10GbE, Thunderbolt 4, and even GPU compatibility. Its UGOS Pro operating system transforms the NAS into a hybrid server capable of running Docker containers, virtual machines, and AI-based indexing, alongside comprehensive backup and synchronization tools across cloud and local environments. While UniFi emphasizes simplicity, low maintenance, and enterprise-grade network reliability, UGREEN delivers a richer feature set and greater hardware freedom at the expense of long-term enterprise validation. In essence, UniFi NAS suits users already invested in UniFi’s ecosystem who value cohesion, predictable performance, and integrated security, whereas UGREEN NAS appeals to those seeking raw performance, versatility, and independent control without ecosystem constraints.

Why Buy UniFi NAS?

Why Buy UGREEN NAS?

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  • Ecosystem Integration: Seamlessly integrates with UniFi Network, Protect, and Access systems, allowing unified management through a single controller interface.

  • Centralized Management: Designed for administrators managing multiple UniFi sites or devices, providing consistent firmware, remote access, and monitoring from one dashboard.

  • Reliable, Efficient Design: ARM-based architecture ensures low power draw, cool operation, and stable long-term performance with minimal maintenance.

  • Enterprise-Grade Networking: Equipped with up to dual 10G SFP+ and 10GBase-T ports, plus USP-RPS redundancy for professional deployments.

  • Proven Security Framework: Benefits from Ubiquiti’s mature network security infrastructure, signed firmware updates, and NDAA-compliant hardware.

  • Superior Hardware Performance: Offers a full range from ARM to Intel Core i5 CPUs, with upgradable RAM, NVMe storage pools, and optional PCIe expansion.

  • Versatile Software (UGOS Pro): Supports Docker, virtual machines, AI photo indexing, and multi-platform backups out of the box.

  • All-in-One Standalone System: Functions independently without relying on an external ecosystem, ideal for users wanting a complete server in one unit.

  • Advanced Connectivity: Includes 2.5 GbE and 10 GbE networking, USB 4/Thunderbolt 4, and support for direct-attached workflows like video editing or large-file transfer.

  • Rapid Development and Updates: Frequent firmware releases continually add new features, broader hardware support, and improved backup and security options.

 

UniFi vs UGREEN NAS – Design, Storage and Range

When comparing UGREEN and UniFi’s NAS portfolios, the first and most visible difference lies in how each brand approaches system design and deployment environment. UGREEN’s NASync series is focused entirely on desktop enclosures, reflecting the brand’s consumer electronics background and intent to cater primarily to home users, prosumers, and creative professionals. Each model, such as the DXP2800, DXP4800 Plus, and DXP8800 Plus, follows a compact, upright chassis layout with attention to quiet cooling and minimal footprint. The aesthetic is consistent across the range—metallic finishes, clear drive bay accessibility, and understated branding—intended to fit easily on a desk or in a studio environment. By contrast, UniFi’s UNAS range adopts both desktop and rackmount designs, depending on model class. The UNAS 2 and UNAS 4 are designed for smaller workspaces and integrate PoE+++ power options to simplify installation, while the UNAS Pro 4 (1U) and UNAS Pro 8 (2U) are full rackmount systems made from SGCC steel, reflecting their professional and data-center-friendly construction standards.

UGREEN’s systems emphasize flexibility and user-level expandability within their desktop footprint. Most models in the NASync line support 2.5-inch or 3.5-inch SATA drives, dual NVMe SSD slots, and optional PCIe or Thunderbolt expansion, allowing them to function as both storage servers and active editing platforms. The DXP480T Plus, for example, is an all-SSD NAS with four M.2 NVMe bays that appeals to users seeking maximum I/O performance for tasks such as 4K video editing or database caching. The DXP8800 Plus, the flagship, extends this design language with eight SATA bays, dual Gen 4 M.2 SSD slots, dual 10 GbE networking, and Thunderbolt 4 connectivity, making it one of the most powerful turnkey NAS options in the consumer space. In comparison, UniFi’s UNAS systems prioritize structural consistency and network integration over expandability. Even though all models provide dual or single NVMe slots, these are limited to caching duties. Drive capacity across the lineup scales more linearly, from two to eight 3.5-inch bays, maintaining a clear size-to-performance progression while focusing on rack density and cooling efficiency.

From a usability perspective, UGREEN’s design philosophy focuses on standalone versatility. Each NASync model is built to function independently as a complete storage and application host, with optional integration through standard network protocols. Physical accessibility is a clear design consideration, with quick-release trays, front USB ports, and in some models, SD card readers for direct media offload. The visual and acoustic design is optimized for open environments, with whisper-quiet fan systems and smart temperature management, making them suitable for use beside workstations or in living spaces. UniFi’s design philosophy, however, centers on infrastructure harmony rather than isolation. The rackmount models are designed to slide directly into existing UniFi network installations, using standard 1U or 2U spacing and consistent power integration with UniFi’s USP-RPS redundant supply network. Even the desktop UNAS 4 maintains visual continuity with UniFi routers and switches, using similar matte finishes, front-facing status LEDs, and clean ventilation lines.

In terms of product range, UGREEN currently offers at least seven NASync models, each targeting a specific performance segment. These include the DXP2800 (2-bay ARM), DXP4800 (4-bay N100), DXP4800 Plus (4-bay N305), DXP6800 Pro (6-bay N305), DXP480T Plus (SSD-only, N305), DH4300 Plus (4-bay ARM), and DXP8800 Plus (8-bay i5-1240P). Each generation introduces more advanced CPUs, faster interfaces, and expanded media capabilities. UniFi’s current UNAS range, while smaller, has diversified rapidly since its launch. The confirmed models include the UNAS 2, UNAS 4, UNAS Pro 4, UNAS Pro 8, and the earlier UNAS Pro 7-Bay, all of which use ARM-based processors and fixed memory configurations. A larger ENAS 16-Bay ZFS system is already in development, targeting enterprise and datacenter deployments in 2026. Compared with UGREEN’s more gradual tiered approach, UniFi’s product scaling is defined by form factor and network bandwidth rather than by CPU class or user workload.

Price segmentation further highlights their opposing strategies. UniFi’s UNAS line is priced aggressively to attract users into its broader ecosystem, starting at $199 for the UNAS 2, rising to $799 for the Pro 8, and including mid-tier models like the UNAS 4 ($379) and Pro 4 ($499). The pricing aligns with UniFi’s established model of offering capable hardware at low margins to encourage ecosystem investment across switches, cameras, and controllers. UGREEN, by contrast, positions its NASync devices as feature-rich all-rounders, with prices reflecting performance class: from $279 for the DXP2800 to around $1,299 for the DXP8800 Plus. The difference in pricing structure is significant but reflects how each company defines value—UniFi through integrated ecosystem scaling, and UGREEN through standalone hardware strength and included functionality.

Brand Model Range Form Factor Drive Bays NVMe Slots Networking Power Design Typical Price Range
UniFi (Ubiquiti) UNAS 2, UNAS 4, UNAS Pro 4, UNAS Pro 8, UNAS Pro 7-Bay Desktop / Rackmount (1U–2U) 2 – 8 × 3.5″/2.5″ 2 × M.2 (cache only) Up to 3 × 10 GbE (SFP+ + RJ45) Internal + RPS / Dual hot-swap PSU $199 – $799
UGREEN NASync DXP2800, DXP4800(+), DXP6800 Pro, DXP480T Plus, DH4300 Plus, DXP8800 Plus Desktop only 2 – 8 × 3.5″/2.5″ + SSD variants 2 × M.2 (cache + storage) 2.5 GbE / 10 GbE / TB4 / USB 4 External or internal PSU

 

UniFi vs UGREEN NAS – Hardware Range

The internal hardware philosophy of UniFi and UGREEN reflects two distinct interpretations of what a modern NAS should prioritize: efficiency and integration versus performance and versatility. UniFi’s UNAS series relies entirely on ARM-based architecture, a deliberate decision aligned with the company’s emphasis on low power consumption, predictable thermal characteristics, and embedded system reliability. Every model in the current UNAS lineup, including the UNAS 2, UNAS 4, UNAS Pro 4, and UNAS Pro 8, is built around a quad-core ARM processor—the A55 at 1.7 GHz for the smaller systems and the A57 at 2.0 GHz for the rackmount models. These CPUs deliver modest compute performance but strong stability and power efficiency, allowing for sustained 24/7 operation without requiring active thermal management beyond standard fan arrays. This design philosophy mirrors UniFi’s broader network device ecosystem, where embedded ARM SoCs dominate routers, gateways, and cameras, ensuring unified firmware management and hardware compatibility across all product categories.

UGREEN’s NASync architecture takes the opposite route, aiming to deliver workstation-grade power in compact form factors. The entry-level DXP2800 features an octa-core ARM CPU, already outpacing UniFi’s top models in raw processing capability, while the remainder of the series transitions to x86 platforms from Intel’s latest low-power and mid-tier lines. The DXP4800 uses Intel’s N100 processor, the DXP4800 Plus and DXP6800 Pro adopt the more capable N305 with improved iGPU performance, and the flagship DXP8800 Plus integrates the 12th Gen Intel Core i5-1240P, offering hybrid performance and support for hardware transcoding, virtualization, and PCIe Gen 4 NVMe. This variation in processor choice underlines UGREEN’s strategy of providing scalable compute resources for different workloads, from basic backup operations to multi-user virtualization and AI-assisted indexing. Unlike UniFi, UGREEN’s systems can operate as full Linux servers, running multiple containers or virtual machines without external dependencies.

Memory and expansion options further highlight the divergence in hardware scope. UniFi’s systems employ fixed memory configurations—ranging from 4 GB on the UNAS 2 and 4 to 16 GB on the Pro 8—with no user-accessible upgrade paths. This aligns with their embedded design approach, where firmware optimization and unified memory management are prioritized over modularity. In contrast, UGREEN’s NASync devices all support user-upgradable SO-DIMM DDR4 or DDR5 modules, typically allowing capacities between 8 GB and 64 GB, depending on the model. This flexibility benefits users running memory-intensive services such as Docker containers, Plex transcoding, or AI indexing. Moreover, many of UGREEN’s x86 systems support PCIe expansion cards, offering pathways to add 10 GbE NICs, NVMe storage adapters, or GPU accelerators, while UniFi’s systems are intentionally non-upgradable to maintain uniform hardware control and firmware consistency across the UNAS ecosystem.

Networking and connectivity options serve as another key point of differentiation. UniFi has leaned on its networking pedigree, offering up to three 10 GbE connections (two SFP+ and one RJ45) on the UNAS Pro 8, with lower-tier models still providing 2.5 GbE or Gigabit connectivity. Power integration is also a hallmark of their design. The UNAS 2 and UNAS 4 use PoE+++, allowing single-cable deployment through UniFi switches, while the Pro series employs redundant power via USP-RPS or hot-swappable PSUs, reducing downtime in managed networks. UGREEN, on the other hand, focuses on local performance flexibility, providing multi-interface options like 10 GbE, 2.5 GbE, USB 4, and Thunderbolt 4, depending on model class. This allows their systems to double as direct-attached storage (DAS) for editors or content creators, particularly when used via Thunderbolt, an option not present in any UniFi NAS. Power designs in UGREEN systems are conventional but efficient, ranging from compact external adapters on smaller models to integrated supplies on higher-end devices.

The overall hardware comparison reveals two clear user archetypes. UniFi’s hardware suits IT administrators and network professionals seeking dependable, uniform, low-maintenance appliances that integrate natively with UniFi controllers and services. UGREEN’s NASync hardware, meanwhile, targets prosumers, creative professionals, and small business users requiring computational headroom and direct system control. Where UniFi builds closed but predictable infrastructure devices, UGREEN delivers open and adaptable machines capable of serving as both NAS and lightweight servers. The contrast is not one of quality but of philosophy—UniFi favoring consistency and system management efficiency, UGREEN focusing on flexibility and computational breadth.

Brand Model CPU Architecture Memory Upgrade Options Networking Expansion Power Design
UniFi (Ubiquiti) UNAS 2 / UNAS 4 ARM Cortex-A55, 1.7 GHz (Quad-Core) 4 GB Non-upgradable 1 × 2.5 GbE, PoE+++ USB-C (5 Gbps) PoE+++ or external PSU
UNAS Pro 4 ARM Cortex-A57, 2.0 GHz (Quad-Core) 8 GB Non-upgradable 2 × 10G SFP+, 1 × 1G RJ45 None Internal PSU + RPS support
UNAS Pro 8 ARM Cortex-A57, 2.0 GHz (Quad-Core) 16 GB Non-upgradable 2 × 10G SFP+, 1 × 10G RJ45 None Dual hot-swap 550 W PSU
UGREEN NASync DXP2800 ARM Octa-Core 8 GB Limited 2.5 GbE USB 3.2 External PSU
DXP4800 / 4800 Plus Intel N100 / N305 8–16 GB (up to 64 GB) Yes 2.5 GbE / 10 GbE PCIe Gen 3 Internal PSU
DXP6800 Pro Intel N305 16 GB (expandable) Yes Dual 10 GbE PCIe Gen 3 Internal PSU
DXP8800 Plus Intel Core i5-1240P 16–64 GB Yes Dual 10 GbE + Thunderbolt 4 PCIe Gen 4 Internal PSU

UniFi vs UGREEN NAS – Software, Services and Apps

The most significant distinction between UGREEN and UniFi’s NAS platforms lies in their software ecosystems and the broader intent behind their development. UniFi’s UNAS software mirrors the brand’s overarching approach to product design: lightweight, efficient, and designed to integrate seamlessly into the UniFi Network and Protect ecosystems. The UNAS interface focuses almost exclusively on storage management and file security. It provides the fundamental NAS feature set, including multiple RAID configurations, volume encryption, snapshot management, and user-based permission control. Files can be accessed through SMB, NFS, with remote management possible via the UniFi portal or mobile app. However, beyond core storage functionality, UniFi’s NAS software remains deliberately minimal. It lacks support for virtual machines, Docker containers, or app installation frameworks, relying instead on integration with other UniFi devices for broader capabilities such as video surveillance, network management, or cloud relay services.

UGREEN’s UGOS Pro platform adopts a far more expansive, multifunctional design. The software is built on a modern Linux kernel and supports both ARM and x86 architectures, allowing for a full-featured environment with native support for containers, virtual machines, and AI-enhanced media indexing. Out of the box, users can deploy Docker, Portainer, Kubernetes-compatible containers, and KVM-based virtual machines, enabling workloads that go far beyond traditional NAS operations. Backup and synchronization options are also more diverse, with support for rsync, S3, WebDAV, iSCSI, OneDrive, Google Drive, Dropbox, and two-way synchronization across multiple NAS units. The interface emphasizes transparency and customization, giving users direct access to system-level configuration that UniFi’s more streamlined interface omits. Features such as storage tiering (using both HDD and NVMe), application sandboxing, and external GPU detection on select models position UGREEN’s UGOS Pro as one of the most open and flexible NAS operating systems currently available outside of enterprise-class environments.

In client and access support, the contrast continues. UniFi’s ecosystem is designed for centralized control and consistent performance across its product range. The UNAS systems can be monitored via the same UniFi Controller interface used for switches, gateways, and access points, creating a single-pane-of-glass environment that appeals to IT administrators managing multiple UniFi sites. Remote access and firmware updates are handled automatically through UniFi Cloud, and security is strengthened by integration with two-factor authentication, device certificates, and network isolation policies inherited from the company’s professional networking hardware. UGREEN, conversely, provides a more conventional NAS interface that supports multiple access clients and cross-platform tools. In addition to browser access and mobile apps for Android and iOS, users can mount shared drives directly within macOS, Windows, and Linux, while also leveraging a dedicated UGREEN Drive application for photo management and AI-based face/object recognition. Where UniFi’s UNAS feels like an extension of a larger network ecosystem, UGREEN’s software operates as a complete standalone server environment.

Security and maintenance are handled very differently between the two brands. UniFi benefits from a mature background in network device hardening, employing signed firmware, rolling updates, and extensive beta testing through its large enterprise user base. Features such as encrypted storage volumes, HTTPS enforcement, and VLAN isolation come preconfigured with minimal user intervention. However, the trade-off for this controlled environment is reduced user autonomy, as firmware customization and software-side experimentation are discouraged. UGREEN, while newer to the enterprise security space, implements encryption standards such as AES-256, offers built-in 2FA, and continues to expand its ransomware prevention and snapshot recovery tools. Updates arrive frequently and often include feature additions alongside security patches, though the brand still lacks a formal bug bounty or transparency reporting system comparable to UniFi’s. Overall, UGREEN’s software offers greater flexibility and control, while UniFi’s remains more mature and hardened within its controlled network framework.

Brand OS Name Core Focus App/Container Support Virtualization Backup & Sync Remote Access Security & Maintenance
UniFi (Ubiquiti) UniFi OS (Storage Module) File storage, snapshots, ecosystem integration No app store or containers None Local, NFS, SMB, UniFi Cloud Via UniFi Network / Protect Encrypted volumes, 2FA, managed firmware updates
UGREEN NASync UGOS Pro Multi-purpose NAS, hybrid storage & compute Docker, Portainer, Linux apps KVM VM support Rsync, S3, WebDAV, iSCSI, cloud sync Browser, mobile app, direct share AES-256 encryption, 2FA, frequent OTA updates

 

UniFi vs UGREEN NAS – Verdict and Conclusion

Both UGREEN and UniFi have entered the NAS sector from distinct starting points and continue to move in different directions, each targeting a particular type of user. UniFi’s UNAS series delivers consistency, predictable performance, and dependable integration with the broader UniFi ecosystem. Its software is stable, lightweight, and well-suited to users who prioritize straightforward storage management, reliable data handling, and unified control across routers, switches, and surveillance systems. While the hardware is limited to fixed ARM configurations and non-expandable memory, it is efficient, quiet, and designed for continuous operation with minimal maintenance. For organizations already invested in UniFi infrastructure, the UNAS systems provide a logical expansion that keeps management centralized and operational risk low. However, their value depends heavily on ecosystem synergy; outside of that environment, the systems remain competent but relatively inflexible standalone NAS options.

UGREEN’s NASync platform, on the other hand, appeals to users seeking broader performance capability and independence. Its x86-based models, upgradable memory, and open software environment allow it to serve as a hybrid between NAS and compact server, capable of running applications, containers, and virtual machines alongside storage tasks. The design language is more suited to individual or small business use than datacenter deployment, but the hardware range—from ARM to Core i5—covers a far wider performance spectrum than UniFi’s. Software maturity continues to evolve quickly, with new features added frequently, and the systems provide extensive compatibility with third-party clients and backup services. The trade-off is that long-term reliability and enterprise-level security validation are still developing.

Ultimately, UniFi NAS suits users who already rely on UniFi’s networking ecosystem and value simplicity, predictability, and centralized management, while UGREEN NAS caters to those prioritizing flexibility, compute power, and open software capability. Both brands have lowered the entry barrier into reliable NAS ownership, but they embody opposing philosophies: UniFi focuses on integration and control, whereas UGREEN emphasizes capability and independence.

Why Buy UniFi NAS?

Why Buy UGREEN NAS?

  • Ecosystem Integration: Seamlessly integrates with UniFi Network, Protect, and Access systems, allowing unified management through a single controller interface.

  • Centralized Management: Designed for administrators managing multiple UniFi sites or devices, providing consistent firmware, remote access, and monitoring from one dashboard.

  • Reliable, Efficient Design: ARM-based architecture ensures low power draw, cool operation, and stable long-term performance with minimal maintenance.

  • Enterprise-Grade Networking: Equipped with up to dual 10G SFP+ and 10GBase-T ports, plus USP-RPS redundancy for professional deployments.

  • Proven Security Framework: Benefits from Ubiquiti’s mature network security infrastructure, signed firmware updates, and NDAA-compliant hardware.

  • Superior Hardware Performance: Offers a full range from ARM to Intel Core i5 CPUs, with upgradable RAM, NVMe storage pools, and optional PCIe expansion.

  • Versatile Software (UGOS Pro): Supports Docker, virtual machines, AI photo indexing, and multi-platform backups out of the box.

  • All-in-One Standalone System: Functions independently without relying on an external ecosystem, ideal for users wanting a complete server in one unit.

  • Advanced Connectivity: Includes 2.5 GbE and 10 GbE networking, USB 4/Thunderbolt 4, and support for direct-attached workflows like video editing or large-file transfer.

  • Rapid Development and Updates: Frequent firmware releases continually add new features, broader hardware support, and improved backup and security options.

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