Seagate Ironwolf vs WD Red (Which is Best in 2025/2026)?

In late 2025, choosing between Seagate IronWolf and WD Red for a NAS is less about raw performance and more about secondary factors such as noise, power consumption, pricing, and ecosystem. Both brands now offer broadly similar SATA performance in their mainstream and Pro lines once you reach 7200 RPM, 256 MB cache, and CMR recording, and both quote comparable workload ratings and multi bay support for NAS use. Durability claims in MTBF, workload per year, and 24 by 7 operation are also effectively at parity on paper, and the underlying engineering around vibration control, error recovery, and NAS specific firmware has converged to a large extent. Where meaningful technical differences still exist is in the maximum capacities on offer and how they are positioned. Seagate currently leads on headline capacity in the NAS tier with IronWolf Pro drives up to 30 TB, while WD Red Pro tops out slightly lower but overlaps most of the mainstream size points that home and small business users are likely to deploy. As a result, the decision for many buyers is less about which brand is objectively better and more about how each behaves in real deployments in terms of acoustics, energy use, long term running costs, warranty extras such as bundled recovery services, and regional pricing patterns at specific capacities.

Seagate vs WD (and Toshiba!) Market Share in 2025/2026?

Across the HDD industry in 2024 and early 2025, Western Digital and Seagate remain closely matched, with Western Digital holding a slight lead by several common measures. Public breakdowns of exabytes shipped in 2024 put Western Digital at roughly 38.6 percent of HDD capacity shipped worldwide, Seagate at about 37 percent, and Toshiba at around 24.4 percent, confirming that the market is effectively a 2 vendor race with a smaller but still significant third player. Although the exact percentages vary depending on whether you look at units, capacity, or revenue, the pattern is consistent, with Western Digital marginally ahead and Seagate following closely behind.

Recent industry and financial reporting also shows Western Digital gaining momentum in high capacity nearline drives, particularly in data center and cloud deployments, with disk based revenue and shipped capacity outpacing Seagate in at least some recent quarters. At the same time, Seagate retains a leadership position in very large capacity models, including 30 TB HAMR based NAS and nearline drives that are already commercially available and aimed at the same high density markets.

Taken together, these data points indicate a tightly contested landscape where Western Digital currently leads in overall shipped capacity and revenue, while Seagate pushes the capacity envelope and remains highly competitive in large scale deployments.

Seagate Ironwolf vs WD Red NAS Hard Drives – Price

In late 2025 there is a clear pattern in how Seagate and WD position their HDDs on price, even if individual deals move around constantly. In general Seagate tends to be slightly cheaper per terabyte across many mainstream retailers and regions, particularly for larger 16 TB to 24 TB IronWolf and Exos capacities. WD pricing is often a little higher at like for like capacity in third party channels, especially for newer Red Plus and Red Pro models, although temporary sales can narrow or reverse this gap. Both brands are heavily discounted during seasonal events, so headline price screenshots are only ever a snapshot rather than a permanent rule.

Where WD changes the picture is through its own direct store. WD sells Red, Red Plus and Red Pro drives through its retail site and often undercuts third party resellers by a noticeable margin, especially during promotions. That means in some regions the cheapest way to buy WD is directly from WD, while Seagate relies entirely on partner channels and keeps relatively steady discounting through Amazon and similar outlets. As a result it is common to see Seagate come out cheaper in most general marketplaces while WD can be the lowest price only on its own store, which is not available in every country.

Once you move up into Pro and nearline class drives, such as IronWolf Pro versus WD Red Pro or WD Gold, pricing becomes more fragmented. Seagate keeps a fairly consistent capacity step pricing model where higher capacities scale in a relatively predictable way. WD on the other hand often runs multiple Red Pro and enterprise SKUs at the same capacity with different cache sizes or internal designs, which leads to overlapping prices and large swings between models that appear similar on paper. In practice this means that at the Pro tier Seagate is usually easier to price compare, while WD may offer good value on specific model IDs or capacities but requires more careful checking of part numbers and current discounts before purchase.

Seagate Ironwolf vs WD Red – Noise Level Comparison

Capacity	Idle Seagate Ironwolf	Idle WD Red Plus	Idle Winner	Seek Seagate Ironwolf Pro	Seek WD Red Pro	Seek Winner
30TB	28 dBA (ST30000NT011)	no WD equivalent	Seagate	32 dBA (ST30000NT011)	no WD equivalent	Seagate
28TB	28 dBA (ST28000NT000)	25 dBA (WD281KFGX)	WD	32 dBA (ST28000NT000)	32 dBA (WD281KFGX)	Tie
26TB	no Seagate model	25 dBA (WD260KFGX)	WD	no Seagate model	32 dBA (WD260KFGX)	WD
24TB	28 dBA (ST24000NT002)	25 dBA (WD241KFGX), 20 dBA (WD240KFGX)	WD	26 dBA (ST24000NT002)	32 dBA (WD241KFGX), 32 dBA (WD240KFGX)	Seagate
22TB	28 dBA (ST22000NT001)	32 dBA (WD221KFGX)	WD	26 dBA (ST22000NT001)	32 dBA (WD221KFGX)	Seagate
20TB	28 dBA (ST20000NT001)	20 dBA (WD202KFGX, WD201KFGX)	WD	26 dBA (ST20000NT001)	32 dBA (WD202KFGX, WD201KFGX)	Seagate
18TB	28 dBA (ST18000NT001)	20 dBA (WD181KFGX)	WD	26 dBA (ST18000NT001)	36 dBA (WD181KFGX)	Seagate
16TB	28 dBA (ST16000NT001)	20 dBA (WD161KFGX)	WD	26 dBA (ST16000NT001)	36 dBA (WD161KFGX)	Seagate
14TB	20 dBA (ST14000NT001)	20 dBA (WD142KFGX), 20 dBA (WD141KFGX)	Tie	26 dBA (ST14000NT001)	36 dBA (WD142KFGX), 36 dBA (WD141KFGX)	Seagate
12TB	28 dBA (ST12000NT001)	20 dBA (WD121KFBX), 34 dBA (WD122KFBX)	WD	26 dBA (ST12000NT001)	36 dBA (WD121KFBX), 39 dBA (WD122KFBX)	Seagate
10TB	28 dBA (ST10000NT001)	20 dBA (WD102KFBX), 34 dBA (WD103KFBX)	WD	30 dBA (ST10000NT001)	36 dBA (WD102KFBX), 39 dBA (WD103KFBX)	Seagate
8TB	28 dBA (ST8000NT001)	20 dBA (WD8003FFBX, WD8005FFBX)	WD	30 dBA (ST8000NT001)	36 dBA (WD8003FFBX, WD8005FFBX)	Seagate
6TB	28 dBA (ST6000NT001)	21 dBA (WD6003FFBX, WD6005FFBX)	WD	30 dBA (ST6000NT001)	36 dBA (WD6003FFBX, WD6005FFBX)	Seagate
4TB	28 dBA (ST4000NT001)	20 dBA (WD4003FFBX), 29 dBA (WD4005FFBX)	WD	30 dBA (ST4000NT001)	36 dBA (WD4003FFBX, WD4005FFBX)	Seagate
2TB	28 dBA (ST2000NT001)	21 dBA (WD2002FFSX)	WD	30 dBA (ST2000NT001)	31 dBA (WD2002FFSX)	Seagate

The difference becomes more apparent once you move beyond a simple 1 or 2 bay NAS and start populating 4, 6 or 8 bay chassis. Multiple Seagate drives running together produce a slightly harsher mechanical sound profile, with more pronounced click and clunk patterns during head movements, as well as higher cumulative vibration. WD drives, particularly Red Plus and most of the more recent Red Pro helium models, lean toward a smoother background hum with less sharp seek noise and lower ambient vibration. For users placing a NAS in a living room, bedroom or under a desk, this cumulative effect can be significant, even if each individual drive only differs by a couple of dBA on paper.

It is worth noting that not every capacity behaves identically. Lower capacities and some air filled WD Red Plus models idle very quietly and can be comparable with the quietest Seagate SKUs, while some high capacity Red Pro variants with 7200 RPM motors and larger caches approach IronWolf Pro levels of seek noise. However, when you average across the current CMR product stacks in late 2025, WD holds a small but consistent advantage in both idle and seek acoustics, especially in multi bay deployments where background noise and vibration build up over time.

Seagate Ironwolf vs WD Red – Power Consumption (Idle / Active)

Looking purely at spec sheets, both Seagate and WD publish idle and seek values that cluster in similar bands, typically around the low 20 dBA range at idle and high 20 to mid 30 dBA under seek as capacities and spindle speeds rise. In practice though, the character of the noise differs between the brands. IronWolf and IronWolf Pro models tend to produce a sharper mechanical click pattern during head seeks and a more noticeable spin up profile, while WD Red Plus and Red Pro lines usually present as a smoother hum with less abrupt transitions between idle and active states. In a quiet room this difference in tone can matter as much as the numeric dBA rating itself.

Capacity	Idle Seagate Ironwolf	Idle WD Red Plus	Idle Winner	Active Seagate Ironwolf Pro	Active WD Red Pro	Active Winner
30TB	6.8W (ST30000NT011)	no WD equivalent	Seagate	8.3W (ST30000NT011)	no WD equivalent	Seagate
28TB	6.8W (ST28000NT000)	3.6W (WD281KFGX)	WD	8.3W (ST28000NT000)	6.0W (WD281KFGX)	WD
26TB	no Seagate model	3.6W (WD260KFGX)	WD	no Seagate model	6.0W (WD260KFGX)	WD
24TB	6.3W (ST24000NT002)	3.6W (WD241KFGX), 3.9W (WD240KFGX)	WD	7.8W (ST24000NT002)	6.0W (WD241KFGX), 6.4W (WD240KFGX)	WD
22TB	6.0W (ST22000NT001)	3.4W (WD221KFGX)	WD	7.9W (ST22000NT001)	6.8W (WD221KFGX)	WD
20TB	5.7W (ST20000NT001)	2.8W (WD202KFGX), 3.6W (WD201KFGX)	WD	7.7W (ST20000NT001)	6.1W (WD202KFGX), 6.9W (WD201KFGX)	WD
18TB	5.0W (ST18000NT001)	3.0W (WD181KFGX)	WD	7.5W (ST18000NT001)	3.6W (WD181KFGX)	WD
16TB	5.0W (ST16000NT001)	3.6W (WD161KFGX)	WD	7.6W (ST16000NT001)	6.1W (WD161KFGX)	WD
14TB	5.0W (ST14000NT001)	3.0W (WD141KFGX), 3.6W (WD142KFGX)	WD	7.6W (ST14000NT001)	3.0W (WD141KFGX), 6.4W (WD142KFGX)	WD
12TB	5.0W (ST12000NT001)	2.8W (WD121KFBX), 6.1W (WD122KFBX)	WD	7.6W (ST12000NT001)	2.8W (WD121KFBX), 8.8W (WD122KFBX)	WD
10TB	7.8W (ST10000NT001)	2.9W (WD102KFBX), 3.0W (WD103KFBX)	WD	10.1W (ST10000NT001)	4.6W (WD101KFBX), 6.1W (WD103KFBX)	WD
8TB	7.8W (ST8000NT001)	4.0W (WD8003FFBX), 4.9W (WD8005FFBX)	WD	10.1W (ST8000NT001)	4.6W (WD8003FFBX), 6.9W (WD8005FFBX)	WD
6TB	7.1W (ST6000NT001)	3.7W (WD6003FFBX), 4.0W (WD6005FFBX)	WD	9.3W (ST6000NT001)	3.7W (WD6003FFBX), 6.9W (WD6005FFBX)	WD
4TB	7.8W (ST4000NT001)	3.7W (WD4003FFBX), 4.0W (WD4005FFBX)	WD	8.7W (ST4000NT001)	3.7W (WD4003FFBX), 5.8W (WD4005FFBX)	WD
2TB	6.7W (ST2000NT001)	6.0W (WD2002FFSX)	WD	6.7W (ST2000NT001)	7.8W (WD2002FFSX)	Seagate

At lower capacities, especially in the 2 TB to 6 TB range where air filled designs and lower spindle speeds are common, WD Red Plus models are often among the quietest options, with idle noise figures that sit at the lower end of the published spectrum and relatively soft seek sounds. Seagate standard IronWolf drives in these capacities are not especially loud by absolute numbers, but they generally sit slightly higher at idle and under random activity. Once you move into high capacity Pro class drives, WD Red Pro and IronWolf Pro become more comparable, although WD still often maintains a small advantage in idle noise on the newest helium filled models, while seek noise can be quite close on some capacities.

Noise differences increase as you add more bays and drives. A 2 bay or 4 bay NAS with mixed workloads may only expose a modest gap in acoustic behaviour between the brands, but 8 bay and larger systems can amplify any small variations. Multiple Seagate drives seeking at once will create more noticeable cumulative chatter and vibration inside a metal chassis, which can transfer into desks or shelving if the NAS is not well isolated. WD units with otherwise similar specifications and workload ratings usually generate less overall vibration, so the aggregate sound from a populated chassis can be easier to live with in shared spaces.

For users planning deployments in noise sensitive environments, such as a living room media setup or a small office where the NAS will sit in the same room as desks, these differences can be a factor in the buying decision once capacity and performance requirements are defined. Seagate remains attractive where price per terabyte and maximum capacity are the main priorities, and users are able to position the NAS in a cupboard, loft or separate room. WD drives typically suit scenarios where the system will remain close to people for long periods, sacrificing a small amount of price advantage in favour of lower background noise and a slightly less intrusive acoustic profile at both idle and under sustained activity.

Seagate Ironwolf vs WD Red – Verdict & Conclusion

From a technical perspective Seagate and WD now sit very close to one another in most core HDD metrics, particularly in the NAS focused IronWolf, IronWolf Pro, Red Plus and Red Pro ranges. Both brands use CMR recording on their NAS lines, have comparable workload ratings in each class, and converge around similar sustained transfer rates once you reach 7200 RPM and larger cache sizes. The main structural differences are that Seagate currently pushes higher maximum capacities into the consumer and prosumer space and includes bundled rescue data recovery on many NAS models, while WD tends to retain a small advantage in power consumption and acoustic behaviour at equivalent capacities, especially in multi bay systems. Historical issues such as WD Red SMR drives and Seagate high failure rate models at specific points in time are still relevant for older stock, but the current generation NAS ranges for both vendors are broadly aligned in specification and intended workload.

In practical terms the choice between Seagate IronWolf and WD Red often comes down to priority order rather than any single clear winner. Users aiming for the lowest cost per terabyte and the highest capacities available in the near term will usually find Seagate more attractive, particularly in larger IronWolf Pro and Exos class drives, accepting higher power draw and a more noticeable acoustic profile. Users who are sensitive to noise, want marginally lower long term energy usage or prefer WD’s clearer product segmentation may gravitate toward Red Plus or Red Pro, taking care to select the correct CMR models and capacities. In all cases the decision should be made at model level using current datasheets and pricing, not just brand reputation, and should be paired with a sensible RAID plan and an independent backup strategy, since neither vendor can remove the fundamental risk that any individual hard drive can fail.

Idle Seagate Ironwolf	Idle WD Red Plus	Active Seagate Ironwolf Pro	Active WD Red Pro

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Best NAS You Can Buy Right Now for Under $249 at the end of 2025

Important Disclaimer and Notes Before You Buy!

Before looking at specific NAS models, it helps to understand the common limits of systems in this price tier. Most units under 249 dollars arrive without drives, and rely on NVMe or SATA bays that must be filled separately. Some include small onboard storage such as 32GB to 64GB eMMC that only covers the operating system. This means the total cost of a usable setup will usually be higher than the base price. These devices are aimed at home users and personal cloud tasks rather than heavier business workloads. Several models also lack a full NAS operating system and instead use lightweight platforms such as CasaOS or ZimaOS, or provide only a simple interface for local file access and containers. These options are improving, yet they may not offer advanced RAID tools, snapshot automation, or detailed permission control found on systems like Synology DSM or TrueNAS. Overall, these NAS units suit users with some technical confidence or anyone who wants a simple setup with limited depth.

Beelink ME Mini NAS – 6 Bay SSD NAS

$209 – Intel N150 – 12GB – No SSD (64GB eMMC Only) – 2x 2.5GbE + WiFi 6 – No OS / User Install – BUY HERE

The Beelink ME Mini is a compact NAS designed for anyone who wants fast SSD storage in a very small enclosure. It measures 99mm on each side and includes six M.2 2280 NVMe slots that can deliver as much as 24TB when fully populated. The system uses an Intel N150 processor with 12GB of LPDDR5 memory, which provides a solid mix of performance and low power draw. Connectivity includes two 2.5GbE ports, WiFi 6, and Bluetooth 5.2, giving it flexibility for both wired and wireless use. Cooling is handled passively and the unit contains its own power supply, which keeps noise and cable clutter to a minimum and makes it a good fit for living rooms or compact office spaces.

Terramaster F2-425 2- Bay Intel Value Turnkey NAS

$249 – Intel N5105 – 4GB – TOS 6 Software – 1x 2.5GbE – 2x SATA – BUY HERE

The Terramaster F2-424 is a two bay NAS that sits near the upper edge of the 249 dollar bracket and focuses on providing a more traditional turnkey experience. It uses an Intel Celeron class x86 quad core processor with 4GB of memory that can be upgraded, which allows it to handle general home NAS tasks and hardware assisted 4K decoding for applications such as Plex, Emby, and Jellyfin.

The system supports two SATA drives for a total capacity of up to 60TB and includes TRAID for flexible expansion and space management. Connectivity is limited to a single 2.5GbE port, which is sufficient for most home use but less flexible than some other systems in this list that offer two LAN ports. The unit runs TOS 6, which provides RAID options, snapshots, cloud sync, and a broad selection of built in apps for backup, media, and light productivity needs.

Setup can be completed through the TNAS Mobile app, which also supports automatic photo and video backups from mobile devices. Local AI driven sorting for photos is included, and cross platform access is available through the TNAS client or standard network mapping. TerraSync enables PC backups with version history, and security features include OTP authentication, firewall controls, DoS protections, snapshots, and HyperLock WORM for ransomware resistance. The chassis is quiet in operation and uses tool free push lock trays that allow quick installation or replacement of drives.

Terramaster also offers the F2-425 Plus at roughly 130 dollars more. That model increases CPU and memory resources and is aimed at users who want stronger performance and scalability. For those who want to remain within the 249 dollar limit, the F2-424 provides a straightforward Intel based platform with a familiar OS, upgradable memory, and native HDD support, as long as the single network port meets the user’s needs.

GMKTec G9 NAS – 4 Bay M.2 NAS @ The lowest Price

$185.99 – Intel N150 – 12GB – No SSD (64GB eMMC Only) – 2x 2.5GbE + WiFi 6 – Ubuntu 24.10 (Preloaded, Switchable) – BUY HERE

The GMKTec G9 provides hardware that closely matches the Beelink ME Mini, since it also uses the Intel N150 processor and 12GB of LPDDR5 memory. It arrives in a more traditional rectangular enclosure and includes four M.2 2280 NVMe slots instead of six. The system contains 64GB of onboard eMMC storage that is mainly used to boot Ubuntu 24.10, and it can dual boot into Windows 11 when an additional SSD is installed. As with the Beelink, there is no SATA support, so all storage relies on NVMe drives up to 4TB each. Cooling is handled by an active fan and the device includes two HDMI outputs, which makes it a stronger option for anyone who wants a small desktop system or direct media output as part of their NAS setup. The manufacturer issued a refresh in summer 2025 that improved the cooling layout with better vent placement and more efficient airflow.

Synology BeeStation 4TB NAS – ALL IN ONE!

$199 – Realtek RTD1619B – 1GB – 4TB SINGLE BAY – 1x 1GbE – BeeStation Manager (BSM) – BUY HERE

The Synology BeeStation 4TB is a single bay NAS designed for users who want a ready to use system with no installation work. It arrives with a pre installed 4TB hard drive and a sealed enclosure, so there is no need to source or fit storage. The system uses a Realtek RTD1619B ARM processor with 1GB of DDR4 memory and connects through a single 1GbE port. It runs BeeStation Manager, which focuses on beginner friendly features such as cloud style file access, simple photo management, and smooth integration with Synology mobile apps. Synology also released the BeeStation Plus model in 2025 with an Intel processor, more memory, and 8TB of storage, but it sits at roughly double the price. If you are willing to spend more, that model gives you greater performance and capacity.

UGREEN NASync DXP2800 NAS – The New Challenger!

$249 – Intel N100 – 8GB – No Storage (32GB eMMC) – 1x 2.5GbE – UGOS Pro – BUY HERE

The UGREEN DXP2800 sits in the NASync series and targets users who want a mix of expandability and value. It supports both hard drives and SSDs through two 3.5 inch SATA bays and two M.2 NVMe slots that can be used for caching or fast active data work. The system uses an Intel N100 processor from the twelfth generation energy efficient N series and pairs it with 8GB of DDR5 memory that can be upgraded. A 32GB eMMC module holds the UGOS Pro operating system. Connectivity is built around a single 2.5GbE port with several USB ports on the front and rear including USB C and 10Gbps USB A. UGOS Pro offers a clean web interface with containers, RAID options such as zero, one, and JBOD, simple multimedia features, and remote file access.

UGREEN recently released the DH2300 two bay NAS at a noticeably lower price of roughly 100 to 120 dollars below the DXP2800. That model uses a lower power ARM processor, far less memory, and only one 1GbE port. It is acceptable for very light duties, but most users will benefit from spending a little more on the DXP2800 due to its stronger CPU, memory capacity, and networking.

Although UGOS Pro does not match the ecosystem depth of Synology DSM or QNAP QTS, the DXP2800 remains one of the few turnkey systems in this bracket that supports SSD and HDD storage in a flexible layout without proprietary limits. Users will still need to supply their own drives and configure storage pools, yet the combination of hardware capability and manageable software makes it a strong choice for anyone comfortable handling a modest amount of setup work.

ZimaBoard 2 (832 Version) – DIY Enthusiast’s DREAM!

$199 – Intel N150 – 8GB – No Storage (32GB eMMC) – 2x 2.5GbE – ZimaOS – BUY HERE

The ZimaBoard 2 (832) is a compact single board NAS platform built for users who want flexibility and modular control rather than a traditional enclosure based system. It arrives as a bare embedded board with all interfaces exposed, which makes it ideal for custom builds. The system uses the Intel N150 quad core processor with 8GB of LPDDR5x memory and includes 32GB of onboard eMMC storage for ZimaOS. The device ships with a lifetime ZimaOS license, which is notable at this price level. It also stands out by providing two powered SATA 3.0 ports, giving it native support for hard drives without any need for USB to SATA adapters. The product is now sold on Amazon, although the price can move between 249 and 349 dollars depending on current stock and promotions, so it is worth watching for discounts.

Connectivity is strong for a low profile platform. It offers two 2.5GbE ports, USB 3.1, a PCIe 3.0 x4 slot, and a Mini DisplayPort output that can deliver 4K60 video. The PCIe slot opens the door for add on networking, storage controllers, or accelerators, although most users will start by using the SATA ports for core NAS storage. The large passive heatsink keeps the board silent, although thermal results will depend on the case you choose and the surrounding environment.

This system suits DIY builders who want to create their own NAS, firewall appliance, lightweight media server, or container host. ZimaOS provides a simple web interface and allows the user to switch to CasaOS or other Linux based platforms if preferred. It is aimed at users who want maximum control and are comfortable managing their own setup rather than those seeking a plug and play NAS.

Each NAS covered in this guide delivers its own mix of hardware capability, expansion potential, and overall usability while staying within the 249 dollar limit. Users who want a fully prepared option with minimal setup will likely prefer the Synology BeeStation, and anyone who wants a small SSD focused system with stronger customisation features may find the Beelink ME Mini or GMKTec G9 more suitable. The UGREEN DXP2800 stands out for its combination of HDD and SSD support and a more developed software platform, while the ZimaBoard 2 is aimed at technical users who want full control over every layer of the build. None of these devices is a perfect all rounder, yet each one provides a practical entry into local storage, self hosted media, and personal backup without exceeding a modest budget

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Get Graphics Drivers and Hardware Transcoding BACK for Plex/Jellyfin/Emby on your Synology NAS

Note – the video on this fix will be published soon and I will update this article with images ASAP.

Synology’s 2025 refresh brought the DS225+ and DS425+ with the familiar Intel Celeron J4125, but it also quietly removed the kernel graphics driver support that Plex, Jellyfin, and Emby use for hardware transcoding of H.264 and HEVC. This guide explains what changed, why it matters for real-world streaming, and how you can restore GPU-accelerated transcoding on these models using an unofficial SSH method shared by the community. If you rely on your NAS to reshape 4K or high bitrate files for phones, tablets, hotel TVs, or limited connections, this walkthrough will help you get that efficiency back.

IMPORTANT – Massive credit to RROrg group over on Github for ‘cracking the nut’ on this with their latest repo HERE 

Additionally, credit to Luka @ Blackvoid, who made this great article, covered this first and gave me permission to use his guide here and in my upcoming video. Read his article HERE

What Happened to Hardware Transcoding on the Synology 2025 NAS, and Why Is This a Problem

When Synology launched the 2025 “x25” lineup, users expected a minor refresh of familiar models like the DS225+ and DS425+. Instead, they discovered that Synology had removed the i915 graphics driver from DSM, effectively disabling hardware transcoding on the Intel Celeron J4125 CPU. This meant that Plex, Jellyfin, and Emby could no longer tap into the iGPU’s Quick Sync Video capabilities. Synology confirmed the change in support tickets, explaining that both H.264 (AVC) and H.265 (HEVC) transcoding had been deliberately blocked at the kernel driver level. The company cited licensing costs for HEVC, even though AVC is license-free, and argued that most client devices already support native playback. The earliest and longest discucssions on this topic are HERE on this Plex Forum thread.

The result is a significant downgrade for users who bought these models expecting the same multimedia performance as their predecessors. Instead of 10–20% CPU usage during hardware-accelerated transcoding, users now see 80–100% CPU utilization when reshaping video on the fly. For remote streaming, converting 4K to 1080p or 720p becomes slow, inefficient, and often unworkable. This change undermines the value proposition of the J4125 platform and leaves Plex and Jellyfin users with hardware that is technically capable but artificially restricted, creating frustration across the Synology community.

Disclaimer: This Is Unofficial – Know the Risks!

Before diving into the workaround, it is important to understand that this method is not supported by Synology and involves altering core system modules via SSH. These steps rely on community-compiled drivers and are provided “as is,” without warranty. Making changes at the kernel level can cause instability, break after DSM updates, or in the worst case, lead to data loss if mistakes are made. You should always keep verified backups of your data before proceeding, and only attempt this if you are comfortable working with the command line and root-level access. Proceed entirely at your own risk.

Step By Step Guide to Get J41225  Graphics Drivers Hardware Transcoding Back

1. Download the Source Code

   • Go to Dave Russell’s GitHub repo (007revad) and download the Source Code (.zip) for the graphics driver fix.

   • 

   • Do not unpack the archive on your computer.

2. Create a Folder on Your NAS

   • Log into DSM and create a new Shared Folder (e.g. scripts) on your main volume.

   • 

   • Make sure your DSM account has full access, since root privileges will be needed later.

3. Upload the Archive

   • Use File Station or SMB to upload the .zip file into the new scripts shared folder.

   • 

   • Once uploaded, extract it on the NAS by right-clicking and selecting Extract Here.

   • 

   • If extraction creates subfolders, move the relevant script files (such as transcode_4_x25.sh) directly into the main scripts directory for easier referencing.

   • 

4. Create a Scheduled Task

   • Open Control Panel > Task Scheduler.

   • 

   • Select Create > Triggered Task > User-defined Script.

   • 

   • Give the task a name (e.g. Synogfx).

   • 

   • Set the User to root.

   • Set the event to Boot-up so the script runs every time the NAS restarts.

   

5. Point to the Script

   • In the task settings, paste the full path to the script file, for example:

     sh /volume1/scripts/transcode_4_x25.sh


   • If unsure, right-click the .sh file in File Station, select Properties, and copy the full directory path.

   • 

6. Confirm and Save

   • DSM will warn you about using root and non-standard scripts. Acknowledge this and proceed.

   • 

   • Enter your DSM admin password when prompted.

   • The scheduled task will now appear in the list.

   • 

7. Run the Script

   • Right-click the new task and select Run to execute it immediately.

   • 

   • Optionally, reboot your NAS to confirm that the driver loads automatically on startup.

   • 

8. Verify Hardware Transcoding

   • Open Plex (or Jellyfin/Emby) and play a file requiring transcoding.

   • 

   • Check playback statistics: you should now see HW (hardware transcoding) instead of CPU-only usage.

Conclusion

Synology’s decision to remove iGPU drivers from the 2025 DS225+ and DS425+ left many users frustrated, especially those who rely on Plex or Jellyfin for remote streaming. While the company cites licensing costs and client-side decoding as justification, the hardware itself remains fully capable of transcoding. Thanks to community-driven efforts, it is possible to re-enable Quick Sync on these models with an SSH-based workaround. This fix restores the efficiency and functionality users expected, though it comes with risks and requires maintenance after reboots. For multimedia enthusiasts who value hardware transcoding, this unofficial solution may be the only way to unlock the true potential of these NAS systems.

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Why are NAS Systems not 10GbE as Standard Right Now?

It is 2025, yet the majority of NAS systems on the market continue to ship with 1GbE or, at best, 2.5GbE networking, leaving many users questioning why 10GbE has not become a standard feature. Over the past decade, the cost of 10GbE networking equipment, including switches, NICs, and adapters, has steadily declined, and the technology has long since moved from being an enterprise-only option into mainstream availability. Home labs, creative professionals, and small businesses are increasingly working with 4K and 8K media, large VM environments, and multi-terabyte datasets, all of which can easily saturate a 1GbE or even 2.5GbE connection. Despite this shift, when browsing the portfolios of Synology, QNAP, Asustor, TerraMaster, or even newer DIY-friendly NAS brands, the entry-level and mid-tier systems remain locked at bandwidth speeds that are already dwarfed by modern SSD arrays and multi-bay RAID configurations.

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This gap between user expectations and manufacturer offerings has become more striking as affordable consumer motherboards and even some mini-PCs now integrate 5GbE or 10GbE as standard. By contrast, NAS vendors still tend to position 10GbE as a high-end add-on or restrict it to flagship models, often requiring costly proprietary NIC upgrades. For the average buyer, this creates the perception that NAS devices are lagging behind broader networking trends and are artificially constrained to maintain price tiers. The reality is more complex. The question of why 10GbE has not become universal in NAS hardware cannot be answered solely by pointing to falling market prices of controllers and switches. Instead, the explanation lies in a mix of economics, hardware design limitations, CPU lane allocations, and the fact that networking itself is evolving beyond 10GbE into alternatives like 25GbE and USB4. All of these factors together show why the integration of 10GbE into NAS devices remains more complicated than it may first appear.

Discussing the Issue / Barriers to Manufacturers

One of the most persistent barriers to universal 10GbE adoption in NAS systems is the economic reality of how these devices are positioned. Vendors like Synology, QNAP, and Asustor operate in a layered product ecosystem, where each tier is designed to push customers toward more expensive models. Entry-level devices often compete on affordability rather than raw performance, meaning that features like 10GbE are deliberately held back to differentiate mid-range and enterprise systems. The actual bill of materials (BOM) cost for including 10GbE hardware is lower than it was five years ago, but manufacturers still view it as a premium feature that justifies higher price points. By holding 10GbE in reserve for upper tiers, vendors protect their margins, avoid cannibalising sales of more profitable models, and keep upgrade paths clear for customers as their needs grow. This is not simply technical gatekeeping but a conscious market segmentation strategy.

A second, more technical challenge comes from CPU and chipset design. The processors used in affordable NAS devices are almost always low-power embedded models—Intel Celeron, Atom, or entry-level AMD Ryzen Embedded chips—which provide only a limited number of PCIe lanes. These lanes must be distributed across storage controllers, NVMe slots, expansion slots, and network interfaces. Introducing 10GbE requires not only dedicating at least two, and often four, PCIe lanes, but also ensuring that the CPU can handle the higher throughput without becoming the bottleneck. If a vendor reallocates lanes to add 10GbE, they may have to reduce the number of NVMe slots, cut down on SATA ports, or compromise expansion card bandwidth. For many manufacturers, it is simpler to leave 10GbE out of the base design than to risk producing a system that looks good on paper but struggles to deliver in practice.

Beyond lane allocation, there is also the issue of power, thermals, and board layout. 10GbE controllers typically draw more power and generate more heat than 1GbE or 2.5GbE chips. In compact NAS enclosures designed for low-noise operation, this can force more aggressive cooling solutions or tighter thermal management. For brands already working within strict acoustic and energy efficiency limits, especially in home or small office NAS devices, the integration of 10GbE becomes a balancing act between speed and stability. Higher thermal load can also reduce the overall lifespan of components or require larger enclosures, both of which erode the appeal of entry-level systems where buyers expect compact and efficient designs.

Another factor that discourages widespread 10GbE adoption is ecosystem alignment. NAS vendors are keenly aware that a large percentage of their target audience does not yet operate in 10GbE-ready environments. Even though 10GbE switches and NICs are more affordable in 2025, many households and small offices still rely on routers and switches with 1GbE or 2.5GbE uplinks. For these users, the inclusion of 10GbE would have little practical benefit, since the rest of the network infrastructure cannot support it. From the manufacturer’s perspective, bundling 10GbE into a device that will simply be throttled by the customer’s network backbone risks making the feature look pointless, or worse, “non-functional.” As such, 10GbE tends to be reserved for prosumer and enterprise segments, where it is more likely that users already have or are willing to invest in compatible infrastructure.

Finally, there is a subtle but important business factor at play: vendor ecosystems and upsell opportunities. Many NAS brands sell proprietary 10GbE upgrade cards or branded NICs, which can only be used with their systems. By omitting onboard 10GbE but providing expansion slots, vendors create an additional revenue stream while giving customers flexibility to upgrade later. This model also ensures that users who truly require 10GbE end up spending more within the brand’s ecosystem, while casual buyers stick to lower-cost systems that do not overdeliver. In this sense, the absence of 10GbE on affordable NAS units is not only about technical limitations, but also about preserving a staged upgrade model that aligns with each brand’s long-term revenue strategy.

The Solution – How Can 10GbE Be More Accessible?

The landscape for 10GbE networking hardware has improved significantly in the last few years, with controllers becoming cheaper, more efficient, and easier to integrate into consumer systems. Early 10GbE relied heavily on costly Intel or Mellanox chipsets designed primarily for enterprise servers, often priced in the hundreds of dollars per card. Today, vendors such as Realtek, Aquantia (now under Marvell), and Broadcom produce consumer-focused 10GbE controllers that are smaller, run cooler, and consume less power. These newer chipsets are also designed to integrate more smoothly with mainstream CPUs and motherboards, reducing the need for complex PCB layouts. The result has been a marked reduction in the cost of standalone NICs and USB-to-10GbE adapters, which now frequently sell for under $100, making them accessible even for home users experimenting with faster networking.

Even with this progress, manufacturers remain hesitant to make 10GbE a baseline feature across all NAS devices. Part of the reason lies in how modern NAS systems must juggle limited resources. As CPUs have shifted to PCIe Gen 4 and Gen 5, the available bandwidth has increased, but vendors are also using these lanes to expand NVMe storage pools, enable GPU acceleration, or add AI-focused co-processors for surveillance, indexing, or media analysis. In many cases, vendors see greater value in offering more M.2 slots, dual PCIe expansion options, or flexible NIC bays than in permanently dedicating space to 10GbE. This explains why hybrid designs are now common: devices shipping with 2.5GbE or 5GbE onboard, with a dedicated slot for an optional 10GbE card. Such configurations give users a faster-than-gigabit baseline, but also keep upgrade paths open for power users who truly need multi-gigabit networking.

The state of 10GbE is also being influenced by the rapid adoption of adjacent technologies. 2.5GbE has become the de facto standard in new consumer motherboards and mid-tier switches, offering a cheap and widely compatible upgrade path for everyday users who want more than 1GbE without changing their cabling. At the other end of the spectrum, higher-speed networking such as 25GbE or 40GbE is filtering down from data centres to advanced prosumer setups, while direct-connect solutions like Thunderbolt 4 and USB4 offer bandwidth well beyond 10GbE with less CPU overhead and simpler plug-and-play deployment. Software optimisation is also playing a role: modern NAS operating systems increasingly support IP over Thunderbolt or USB4, which provides a parallel path to multi-gigabit performance without the traditional reliance on Ethernet standards. As a result, 10GbE finds itself squeezed in the middle—too expensive to be a no-brainer at the entry level, but increasingly overshadowed by faster alternatives at the top end. It remains a critical sweet spot for small businesses and creative professionals, but its window of dominance is being challenged by the pace of networking innovation.

Verdict and Conclusion – Buy a 10GbE NAS Now or Wait?

The question of why 10GbE has not become a standard feature across NAS devices in 2025 does not have a single answer, but rather a convergence of factors. Manufacturers face technical challenges in CPU lane allocation, thermal management, and system design, while also making deliberate market choices to protect product segmentation and encourage upsell opportunities. At the same time, 10GbE sits in an awkward position within the networking landscape: cheaper and more efficient than ever, yet increasingly bypassed by the widespread adoption of 2.5GbE on the low end and the emergence of 25GbE, Thunderbolt, and USB4 on the high end. For now, this means that 10GbE remains reserved for higher-tier NAS systems where the hardware can genuinely sustain its throughput and where the user base is prepared to invest in compatible infrastructure. While prices will continue to fall and adoption will grow, it is unlikely that every NAS will adopt 10GbE as standard before other technologies begin to replace it as the next performance baseline.

5 affordable Turnkey 10GbE NAS Solutions (Between $499 and $699)

For years, 10GbE networking has been seen as a premium feature reserved for high-end or enterprise-grade NAS devices, often pushing total system costs well beyond the reach of home users and small businesses. However, as controller prices have dropped and demand for faster data transfers has grown, a new wave of affordable NAS solutions has started to appear with built-in 10GbE. These systems no longer require expensive proprietary upgrade cards or third-party NICs, and many sit comfortably below the $699 / £599 price point. They cover a range of use cases, from compact SSD-based NAS devices to rackmount storage appliances and versatile desktop units. Below is a selection of some of the most notable options currently available, each offering a balance of performance, connectivity, and affordability for users who want to move beyond 1GbE or 2.5GbE without breaking the bank.

UniFi UNAS Pro (7-Bay, Rackmount)

I keep coming back to two words for the UniFi UNAS Pro—fundamentals and consistency. UniFi has clearly focused on making this system a strong addition to their ecosystem, prioritizing the essential storage needs of a NAS. They’ve succeeded in this, but comparisons with long-established competitors are inevitable. While solid, reliable, and stable, the UniFi UNAS Pro will take time to be competitive on the software front. If you’re deeply invested in the UniFi ecosystem, you’ll appreciate its ease of use and integration. However, outside of a UniFi network, it may feel feature-light compared to alternatives. The pricing is competitive for a launch product at $499, and while it’s not the best NAS on the market, it’s the most user-friendly and UniFi-ready. It will likely satisfy many users’ needs. I can certainly see this being integrated into existing UniFi networks as a 2nd stage backup alongside their already existing 3rd party NAS solution, with the potential to graduating to their primary storage as Ubiquiti continue to evolve this platform above and beyond the fundamentals their have nailed down in the UNAS Pro system.

• Approx. Price: $499 / £400

• Specs: ARM Cortex-A57 quad-core CPU, 8 GB RAM, seven 2.5″/3.5″ SATA bays, 1×10GbE SFP+ and 1×1GbE.

• Why It Stands Out: Exceptional price-to-performance for pure storage needs. Lacks advanced multimedia or container apps but ideal for high-speed backups in a rackmount setup.

BUILD QUALITY - 10/10

HARDWARE - 7/10

PERFORMANCE - 7/10

PRICE - 9/10

VALUE - 8/10

8.2

PROS

Nails down the fundamentals of NAS Storage very well
Easy to use GUI and well suited in the UniFi Ecosystem/UX
Complete Offline Use is supported
Use of a UI account is NOT compulsory
Excellently deployed Snapshot Features
10GbE out-the-box
Open HDD Compatibility, but also 1st party options too
Backup and Restoration Options Nailed down perfectly
Very power efficient and CPU/, Memory utilization rarely high
Compact, Quite and well designed chassis
The LCD controls are completely \'different level\' compared to other brands in the market
Promised competitive pricing
FAST deployment (3-5mins tops)
Reactive Storage expandability and easy-to-understand storage failover options
Mobile app deployment is intuitive/fast
Feels stable, secure and reliable at all times
Performance is respectable (considering SATA Bay count and CPU) but also sustained performance is very good
Single screen dashboard is clear and intuitive
Ditto for the native file explorer

CONS

7 Bays is a bit unusual, plus feels like the existing UNVR with different firmware
Additional App installation (eg. \'Protect\') not currently supported. So no container support for 3rd party apps
Network Controls are limited
Works at it\'s best in an existing UniFi managed network, feels a little limited in \'standalone\'
Multiple storage pools not supported (nor is RAID 0)
Lack of Scheduled On/Off
Lack of redundant PSU
Only 1 10Gb port and 1x 1GbE, no USBs for expanded storage or an expansion

Asustor Flashstor 12 Gen 1 (Compact NVMe NAS)

The Asustor Flashstor Gen 2 12-Bay NAS is a robust and versatile solution for users with demanding storage needs. Its combination of high-performance hardware, extensive connectivity options, and compact design makes it a standout choice for content creators, small businesses, and enthusiasts. With dual 10GbE ports, USB 4.0 connectivity, and support for up to 12 M.2 NVMe drives, it offers exceptional speed and scalability. While the device has a few quirks, such as its mixed PCIe slot speeds and lack of M.2 heat sinks, these are manageable with proper planning and aftermarket solutions. The Flashstor Gen 2 excels in raw performance, handling intensive workflows with ease and maintaining low noise levels even under load. Its power efficiency and robust thermal management further enhance its appeal for 24/7 operation. For users prioritizing hardware capabilities and performance, the Flashstor Gen 2 delivers on its promises. While its complexity may deter less experienced users, those with the technical expertise to configure and optimize the system will find it a valuable addition to their workflow.

• Approx. Price: $750 / £600

• Specs: Intel Celeron N5105, 12×M.2 NVMe slots, single 10GbE port, compact form factor.

• Notable Traits: High-density SSD storage in a small desktop chassis. Excellent value for SSD-heavy builds.

SOFTWARE - 6/10

HARDWARE - 9/10

PERFORMANCE - 10/10

PRICE - 7/10

VALUE - 8/10

8.0

PROS

Exceptional Performance: Dual 10-Gigabit Ethernet ports and USB 4.0 connectivity deliver fast and reliable data transfer speeds, ideal for 4K editing and collaborative environments.
Extensive Storage Options: Supports up to 12 M.2 NVMe SSDs, allowing for large-scale, high-speed storage arrays.
ECC Memory Support: Includes 16GB of DDR5-4800 ECC memory (expandable to 64GB), ensuring data integrity for critical applications.
Compact Design: Small footprint makes it perfect for workspaces with limited room.
Quiet Operation: Dual-fan system keeps noise levels low, even under heavy loads.
Flexible Connectivity: Features two USB 4.0 Type-C ports and three USB 3.2 Gen 2 Type-A ports for direct storage access and peripheral integration.
Power Efficiency: Low power consumption (32.2W idle, 56W under load) makes it economical to run, even for 24/7 operation.
Thermal Management Enhancements: Dual fans and copper heat pipes efficiently dissipate heat, ensuring stable performance.
Support for Third-Party Operating Systems: Compatible with platforms like TrueNAS and Unraid for advanced customization.

CONS

Mixed PCIe Slot Speeds: Inconsistent PCIe bandwidth across M.2 slots complicates unified RAID configurations.
Lack of M.2 Heat Sinks: NVMe slots do not include heat sinks, requiring aftermarket cooling solutions for intensive workloads.
No Integrated Graphics: The AMD Ryzen V3C14 processor lacks integrated graphics, limiting hardware transcoding and multimedia capabilities.
Steep Price: The 12-bay model’s cost ($1,300–$1,400) and the six-bay version’s lack of ECC memory make them expensive compared to alternatives.

UGREEN NASync DXP4800 Plus

BOTTOM LINE – The UGREEN NASYnc DXP4800 Plus does not feel ‘finished’ yet and still needs more time in the over, but UGREEN have been very clear with me that this product is not intended for release and fulfilment till summer 2024 and improvements, optimization and product completion is still in progress. Judging the UGREEN NAS systems, when what we have is a pre-release and pre-crowdfunding sample, was always going to be tough. The DXP4800 PLUS is a very well put-together NAS solution, arriving with a fantastic launching price point (arguably even at its RRP for the hardware on offer). UGREEN has clearly made efforts here to carve out their own style, adding their own aesthetic to the traditional 4-bay server box design that plagues NAS boxes at this scale. Equally, although they are not the first brand to consider Kickstarter/Crowdfunding for launching a new product in the NAS/personal-cloud sector, this is easily one of the most confident entries I have seen yet. The fact that this system arrives on the market primarily as a crowdfunded solution (though almost certainly, if successful, will roll out at traditional retail) is definitely going to give users some pause for thought. Equally, the UGREEN NAS software, still in beta at the time of writing, although very responsive and nailing down the basics, still feels like it needs more work to compete with the bigger boys at Synology and QNAP. Hardware architecture, scalability, and performance are all pretty impressive, though the performance of the Gen 4×4 M.2 NVMe slots didn’t seem to hit the numbers I was expecting. Perhaps a question of PCIe bottlenecking internally, or a need for further tweaking and optimization as the system continues development. Bottom line, with expected software updates to roll out closer to launch and fulfillment, such as an expanded App center and mobile client, the UGREEN DXP4800 Plus is definitely a device worth keeping an eye on in the growing Turnkey and semi-DIY NAS market. As an alternative to public cloud services, this is a no-brainer and worth the entry price point. As an alternative to established Turnkey NAS Solutions, we will hold off judgment till it is publicly released.

• Approx. Price: $595 / £475

• Specs: Intel Pentium Gold 8505 (6-thread), 8 GB DDR5, 4×SATA + 2×M.2 slots, 1×10GbE and 1×2.5GbE, plus HDMI, USB-C, USB-A, and SD reader.

• Why It’s Attractive: Well-rounded design with rich connectivity and media support, undercuts most rivals on price and features.

SOFTWARE - 6/10

HARDWARE - 9/10

PERFORMANCE - 6/10

PRICE - 9/10

VALUE - 8/10

7.6

PROS

Exceptional Hardware for the Price
4 HDDs + 2x Gen 4x4 M.2 in 1 box under $400
Good Balanced CPU choice in the Pentium Gold 8505
10GbE and 2.5GbE as standard
An SD Card Slot (wielrd rare!)
10/10 Build Quality
Great Scalability
Fantastic Mobile Application (even vs Synology and QNAP etc)
Desktop/Browser GUI shows promise
Established Brand entering the NAS Market
Not too noisy (comparatively)
Very Appealing retail package+accessories

CONS

10GbE Performance was underwhelming
Crowdfunding choice is confusing
Software (still in Beta) is still far from ready 22/3/24
non-UGREEN PSU is unexpected

TerraMaster F4-424 Max / F6-424 Max

The TerraMaster F4-424 Max is a robust 4-bay NAS system that offers a powerful mix of features and flexibility for a wide range of tasks. Powered by the Intel i5-1235U CPU with 10 cores and 12 threads, the F4-424 Max excels at resource-intensive applications such as Plex media streaming, 4K hardware transcoding, and virtual machine hosting. Its dual M.2 NVMe slots running at PCIe Gen 4 speeds significantly improve storage performance, especially when used for caching, while the two 10GbE ports offer high-speed networking environments, allowing for 20Gbps throughput via link aggregation.

In terms of software, TOS 6 brings notable improvements, although it still lags behind the more polished ecosystems of Synology DSM and QNAP QTS. That said, TerraMaster’s continuous software evolution with each new version of TOS ensures that users have access to more robust tools and security features. For its price point of $899.99, the F4-424 Max is a compelling option for those seeking high-performance NAS solutions with scalability in mind. While the Pro model offers competitive performance, the Max takes it a step further with advanced networking, making it ideal for environments where speed is a priority.

• Approx. Price: $675 / £550 (F4-424 Max, during sale) – $899 / £700 (F6-424 Max, regular)

• Specs: Intel Core i5-1235U (10-core), 8 GB RAM, dual 10GbE ports, dual M.2, with 4 or 6 SATA bays depending on model.

• Why It Helps: The F4-424 Max frequently drops below the $800 mark in promotions, offering unusually strong CPU performance and dual 10GbE at a mid-range price point.

SOFTWARE - 6/10

HARDWARE - 9/10

PERFORMANCE - 9/10

PRICE - 9/10

VALUE - 8/10

8.2

PROS

Powerful Hardware: Intel i5-1235U with 10 cores and 12 threads for resource-heavy tasks.
Dual 10GbE Ports: High-speed networking capabilities with link aggregation for up to 20Gbps, ideal for large file transfers.
PCIe Gen 4 NVMe Support: Two M.2 NVMe slots offering exceptional performance for caching or additional high-speed storage.
Efficient Cooling: The large 120mm fan ensures quiet and effective cooling, making it suitable for home and office environments.
Improved TOS 6 Software: Enhancements in GUI, backup tools, and overall security bring TOS closer to its competitors.

CONS

Higher Price Tag: At $899.99, it’s more expensive than TerraMaster’s other models, which may deter budget-conscious buyers.
No PCIe Expansion: Lack of a PCIe slot limits potential for future upgrades, such as adding 10GbE cards or more M.2 drives.
Presentation: The software has improved a lot, but still feels inconsistent in places compared with alternatives from brands such as Synology and QNAP.

Summary Table

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 Synology DS425+ Review – Should You Buy This NAS?

The Synology DS425+ is a 4-bay NAS system launched in mid-2025 as part of the company’s continued refresh of its Plus Series product line, replacing the DS423+. It is designed to serve home power users, creative professionals, and small business environments that require a balance of reliable storage, streamlined software integration, and modest multimedia capabilities. The unit retains a familiar chassis and architecture, featuring the Intel Celeron J4125 quad-core processor (2.0 GHz base, 2.7 GHz burst) with integrated graphics support, 2GB of soldered DDR4 memory (expandable up to 6GB with an additional 4GB Synology module), and two M.2 NVMe slots intended primarily for SSD caching using Synology-verified drives.

Alongside this hardware, the DS425+ runs DSM 7.2 and includes the full suite of Synology services, such as Active Backup, Surveillance Station, Virtual Machine Manager, Synology Drive, and Hybrid RAID (SHR) support. Network connectivity is handled by a single 2.5GbE and a 1GbE port, while two USB 3.2 Gen 1 ports enable external storage or UPS integration. Despite minimal hardware changes over its predecessor, the DS425+ demonstrates Synology’s continued focus on efficiency, low noise output, and energy-conscious operation—important factors for users planning to run a 24/7 NAS. However, these choices also reflect broader changes in Synology’s platform strategy that may not suit every user, especially those seeking higher flexibility or modern internal specifications.

SOFTWARE - 10/10

HARDWARE - 4/10

PERFORMANCE - 6/10

PRICE - 6/10

VALUE - 7/10

6.6

PROS

DSM 7.2 Operating System: Offers a rich suite of first-party apps including Active Backup, Surveillance Station, Synology Drive, and Hyper Backup with strong cross-platform support.
Low Noise and Power Consumption: Quiet 92mm fan setup and efficient power usage (~28W under load) make it ideal for 24/7 operation in home or office environments.
Integrated Graphics (Intel UHD 600): Supports light Plex or Jellyfin hardware transcoding for 1080p media, a rare inclusion in Synology’s 2025 lineup.
Compact and Versatile Design: Small chassis with 4 SATA bays and 2 M.2 NVMe slots for cache acceleration, supporting RAID 5/6 and SHR.
Strong Security Posture: Includes 2FA, SSL, VPN tools, and a proactive PSIRT vulnerability disclosure program for ongoing protection.
Good Thermal Management: Maintains stable drive and system temperatures (~32–35°C) even under moderate load.
Broad Software Ecosystem: Additional apps like Synology Photos, Chat, Office, and Drive make it a multi-functional NAS beyond just storage.

CONS

Strict Drive Compatibility: Requires Synology-only HDDs and SSDs for full functionality; third-party drives trigger warnings or are blocked entirely.
Outdated CPU Platform: Uses a 2019-era Intel J4125 CPU, now underpowered compared to newer Intel N-series or AMD embedded chips.
Memory Upgrade Limitations: Comes with 2GB soldered RAM, upgradeable to only 6GB total, and officially supports Synology-branded memory only.
Limited Connectivity and I/O: No PCIe, eSATA, or SD card support; only one 2.5GbE and two 5Gbps USB ports—lagging behind competitors in 2025.

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DSM Software Ecosystem and Integration

One of the most compelling reasons to consider the DS425+ is its support for Synology’s DiskStation Manager (DSM), a mature and highly integrated NAS operating system. DSM 7.2, which comes preinstalled, offers a unified and consistent user experience with a wide range of built-in applications tailored for home users, remote workers, and small office setups. Core tools like Active Backup for Business allow centralized backup of entire operating systems, folders, and virtual machines, making the DS425+ useful as a bare-metal recovery or disaster recovery node. Hyper Backup enables encrypted, versioned backups to local, remote, or cloud destinations, while tools like Snapshot Replication provide rapid rollbacks and protection against ransomware.

Synology also offers sector-specific solutions through packages like Surveillance Station and Virtual Machine Manager, the former allowing support for up to 40 cameras (with up to 800FPS at 1080p H.264), and the latter providing basic VM hosting for Linux and lightweight Windows workloads. These tools are tightly optimized for the hardware, with low overhead and accessible browser-based management. Furthermore, the DS425+ supports Synology Hybrid RAID (SHR), giving users more flexibility when mixing drive capacities and minimizing unused storage space compared to traditional RAID models.

DSM extends beyond simple storage management by including companion apps like Synology Photos, Drive, and Chat, all of which are compatible with Windows, macOS, Android, and iOS. The DS425+ integrates these tools with centralized user management, group permissions, and support for LDAP and Active Directory.

For users who value reliability, Synology’s proactive security strategy—including its public security advisories, pen-testing initiatives, and in-house incident response—adds extra confidence to the long-term stability and safety of the system. In many cases, users report that the simplicity and polish of DSM is what keeps them loyal to the Synology platform, even when hardware specifications appear modest.

Strict Drive Compatibility and Locked Storage Expansion

One of the most significant limitations of the DS425+ is its strict enforcement of Synology-only drive compatibility, particularly for both 3.5″ HDDs and M.2 NVMe SSDs. As of mid-2025, this model only allows full functionality when paired with Synology-branded drives, such as the HAT5300 series for hard disks or SNV3410/3510 for SSDs.

If users attempt to install non-Synology drives—even widely used options like Seagate IronWolf or WD Red—the system will either block the drives entirely or present warnings and restrict key functionality, such as RAID rebuild, hot spare assignment, or expansion. This policy represents a significant departure from Synology’s historically broader compatibility stance and has become a source of ongoing controversy among users and reviewers alike.

From a practical standpoint, this limitation can result in higher upfront costs, reduced flexibility in sourcing drives, and long-term concerns about availability and vendor lock-in. For example, Synology’s high-capacity enterprise HDDs are often difficult to find in retail channels and may be priced at a premium compared to similar offerings from Seagate or Toshiba.

Users migrating from older Synology systems who want to reuse perfectly functional drives may find themselves unable to do so, as the new system won’t allow proper array recovery or expansion unless all drives meet the strict compatibility criteria. While this approach enables Synology to tightly optimize performance and reliability, it effectively turns the DS425+ into a semi-proprietary ecosystem where even core storage components are vendor-restricted.

This is particularly frustrating for experienced NAS users who expect to mix and match drives or who run environments where hardware recycling and drive lifecycle management are critical. The decision also impacts future-proofing: users who want to grow their arrays over time must now ensure drive stock alignment with Synology’s approved list, which may change over time or vary by region. Despite DSM’s strengths, this hard stance on compatibility significantly undermines one of the key selling points of NAS platforms—modularity—and could be a dealbreaker for value-conscious users or those with existing disk investments.

Low Noise and Power Efficiency for 24/7 Use

Another advantage of the DS425+ lies in its energy-efficient and acoustically quiet design, which makes it highly suitable for constant operation in homes, studios, or office environments where noise and heat are critical considerations. Based on extended testing, the system consumes just 28.25W under access load and drops to as low as 6.10W in HDD hibernation, making it one of the more economical NAS units in its class when measured over long-term 24/7 usage.

Even when populated with four 4TB hard drives and placed under sustained load, real-world power draw rarely exceeded 44W during high CPU utilization. This is further aided by the relatively low thermal output, with ambient casing temperatures measured around 32°C and drive bays stabilizing at just 35°C under load.

In terms of acoustic performance, the DS425+ is equipped with two 92mm fans, and noise testing shows the system remains quiet enough for close-proximity deployment. In idle mode with the fans on their lowest profile, it registers a sound level between 36 to 38 dB(A), which increases only moderately under load or at medium fan speed. Even when the system was manually set to full fan speed with high drive activity, noise output peaked at 53 dB(A)—still manageable for most non-silent workspaces. This operational profile makes the DS425+ appealing to users seeking a low-maintenance NAS that can be discreetly placed in a shared room, office, or AV rack without introducing unwanted distraction or thermal buildup.

This power and noise behavior also helps prolong component lifespan, particularly in warmer climates or enclosed cabinets, and supports use cases like 24/7 media server operation, offsite backups, or even small-scale CCTV archiving. Importantly, despite these low operating figures, the DS425+ still maintains stability and consistent throughput thanks to the efficiency of the J4125 processor and DSM’s power-aware service management. These characteristics, often underappreciated in specs alone, make it especially suitable for those who want reliable long-term uptime without high energy costs or acoustic interference.

Memory Limitations and Unorthodox Upgrade Path

The DS425+ comes with 2GB of DDR4 memory soldered directly to the motherboard, which is low by 2025 standards even for entry-level NAS devices. While it includes an additional memory slot that allows for the installation of a single 4GB module, the system officially supports a maximum of just 6GB of total RAM. This is an unusual and restrictive configuration, especially when many modern NAS devices now ship with 4GB or 8GB by default, and support 16GB or more—sometimes with dual-channel configurations for better performance. Synology’s strict validation policy also means that only their branded RAM (e.g. D4NESO-2666-4G) is fully supported, and installing third-party modules can trigger warnings in DSM or potentially void support coverage.

This memory ceiling becomes problematic when running DSM features that scale with RAM usage, such as Synology Drive, Snapshot Replication, Virtual Machine Manager, or Surveillance Station. As observed during testing, the DS425+ routinely used 27–38% of its available memory at idle, even without third-party packages installed. This is largely due to DSM’s intelligent memory caching system, which improves performance but leaves little headroom for user-defined workloads. Once additional services or multimedia indexing tasks are introduced, memory utilization climbs quickly, increasing the risk of slowdowns, swap usage, or outright service failure under peak demand.

For users who intend to deploy containers, host multiple camera feeds, or run even a small number of VMs, this limitation may lead to bottlenecks sooner than expected. It also makes the DS425+ a less viable choice for future expansion or multi-user environments. Unlike other NAS brands that allow full third-party upgrade freedom—or systems with dual RAM slots and broader capacity support—Synology’s enforced limitations here represent another example of the platform’s increasingly locked-down approach. For a system marketed to prosumers, the inability to exceed 6GB RAM comfortably is a notable technical and strategic constraint.

Integrated Graphics for Light Media Transcoding

Unlike many NAS units in this price tier, the DS425+ includes an Intel Celeron J4125 processor with integrated Intel UHD Graphics 600, which unlocks hardware-accelerated video decoding and transcoding in supported applications like Plex or Jellyfin. This makes the DS425+ one of the few Synology models in 2025 that still offers integrated GPU support out of the box, especially as newer Synology models with more recent CPUs have increasingly omitted integrated graphics. While the DS425+ is not intended to replace a dedicated media server, its GPU can significantly improve performance and efficiency for on-the-fly transcoding of formats like H.264 and H.265 (HEVC), particularly when streaming to remote clients with bandwidth constraints.

In real-world usage scenarios, this means the DS425+ can handle direct streaming and limited transcoding of 1080p content without overwhelming the CPU, provided the source formats are within the GPU’s supported codec list. During Plex testing, the DS425+ performed adequately with one or two 1080p transcodes running simultaneously, and was also able to manage basic 4K downscaling if the codec was natively supported by the hardware. For home users who have mixed devices—such as smart TVs, mobile devices, and tablets that vary in codec support—the presence of hardware transcoding offers improved flexibility without requiring as much manual conversion or format standardization of their media library.

Additionally, Synology’s native multimedia applications such as Surveillance Station and Synology Photos also benefit from GPU acceleration, helping speed up thumbnail generation, indexing, and playback, especially for high-resolution image and video collections. While raw CPU power in the DS425+ is modest by 2025 standards, the inclusion of integrated graphics helps balance out performance for lightweight graphical workloads and makes the system more viable as a general-purpose media hub. For users considering a NAS for Plex, family media streaming, or small business content previews, this capability adds meaningful value—especially since few modern Synology NAS devices still include Intel-based chips with iGPU support.

Outdated CPU Platform and Limited Performance Headroom

The DS425+ ships with the Intel Celeron J4125, a 4-core, 4-thread processor that was originally launched in late 2019. While it offers modest performance and includes integrated graphics, the J4125 is now significantly behind modern alternatives in both efficiency and raw compute power. Intel itself has discontinued the Celeron branding entirely, moving toward newer architectures like Alder Lake-N and Jasper Lake, which offer improved IPC (instructions per cycle), higher core/thread counts, and better thermal efficiency—all while retaining low power consumption. In comparison, the J4125’s aging 14nm Gemini Lake architecture struggles with heavier multitasking, especially when running services like virtual machines, surveillance workloads, or multiple Docker containers in parallel.

Synology has retained this CPU across several generations of its 2- and 4-bay Plus series models, which makes the DS425+ feel less like a generational upgrade and more like a lateral move. During performance testing, the unit handled DSM core tasks and multimedia indexing smoothly, but CPU load increased sharply under heavier tasks such as simultaneous Surveillance Station streams, Hyper Backup routines, or basic VM instances.

This limited headroom constrains the DS425+ to light-to-moderate workloads, and it can bottleneck more quickly than newer systems from other brands using more recent Intel N-series or AMD Ryzen Embedded CPUs. This is especially important as DSM continues to add new features that may increase background resource consumption over time.

Additionally, the CPU’s lack of support for modern instruction sets or features like AVX can limit compatibility with certain Docker containers or third-party applications that expect more recent hardware. While the DS425+ can serve well as a general-purpose file server or light media NAS, it’s not suited for users who anticipate growth into heavier mixed-use deployments. In a 2025 market where many similarly priced NAS units offer 6- or 8-core CPUs and PCIe Gen 3 or 4 support, the DS425+ feels constrained and unlikely to age well for users with evolving or expanding workloads.

Compact Form Factor with Versatile Storage Options

The DS425+ offers a space-efficient chassis design that houses four 3.5″/2.5″ SATA drive bays, along with two M.2 2280 NVMe SSD slots for caching. This provides a versatile platform for users who want flexible storage layouts without moving to a physically larger or more expensive rackmount or tower system.

The vertical orientation of the chassis, measuring just 166 x 199 x 223 mm, makes it easy to deploy the device in tight workspaces, shelving units, or beneath desks—ideal for small offices, home studios, or AV setups where space is at a premium. Despite its small footprint, the device retains full support for key RAID configurations including SHR, RAID 5/6/10, and JBOD, and offers hot-swappable access to the main drive bays for ease of maintenance.

The inclusion of two M.2 NVMe slots on the base of the unit allows users to improve performance through read/write caching without sacrificing primary drive bays. Although these M.2 slots are limited to Synology-verified SSDs and are not usable for storage pools, they can still offer significant boosts to random I/O performance in multi-user environments or when used with demanding workloads like Synology Drive or VM hosting. Combined with support for SSD TRIM and smart cache algorithms within DSM, the system can be tuned to optimize response times during high-access periods without introducing large amounts of memory overhead.

From a practical standpoint, this layout is beneficial for users managing multiple storage tiers, such as a mix of large-capacity HDDs for archiving and faster SSDs for active projects or virtual machines. Furthermore, the DS425+ supports volume expansion using larger capacity drives, RAID migration options (e.g. from Basic to RAID 5 or RAID 5 to RAID 6), and up to 32 internal volumes, giving users enough headroom for future scaling. These features, while standard in DSM, are fully supported in this chassis and make it easier to adapt the NAS as storage needs evolve—without the need to start from scratch or invest in a new enclosure.

Limited I/O and Underwhelming Connectivity for the Price

While the DS425+ introduces a 2.5GbE network port alongside a legacy 1GbE port, the rest of its I/O configuration is relatively limited and arguably outdated compared to competitors in its price range. The system includes just two USB 3.2 Gen 1 ports, both of which operate at 5Gbps rather than the more modern 10Gbps (Gen 2) speeds that are increasingly common in 2025. There is no SD card slot, no eSATA or PCIe expansion slot, and no HDMI output, all of which are features now appearing on rival NAS systems from QNAP, TerraMaster, and UGREEN—even at similar or lower price points. These omissions restrict how the device can be expanded or integrated into more complex workflows, such as direct-attached backup targets, external GPU support, or quick media ingestion.

The presence of only a single 2.5GbE port also imposes a bottleneck for users wanting to make full use of SSD caching or high-throughput RAID configurations. There is no support for link aggregation, as the 1GbE and 2.5GbE ports cannot be bonded in a meaningful way, and the system lacks support for 5GbE or 10GbE—either onboard or via expansion. In scenarios where large video files, virtual machine images, or multiple users are simultaneously accessing data, the NAS may become network-bound more quickly than other models with multi-GbE or SFP+ connectivity.

Furthermore, while DSM offers support for USB peripherals such as external drives and UPS devices, the limited port count and bandwidth mean there is little headroom for simultaneous external expansions, and the brand limits the support of USB peripherals for security reasons. For example, attaching both an external drive and a USB-connected UPS may require unplugging one to rotate in another device. This may not impact casual home users, but for power users managing workflows like video editing, offsite rotation backups, or multi-location file sync, this level of I/O flexibility feels dated. When factoring in the DS425+’s pricing, which places it near many NAS models with more expansive I/O, this minimalism can be a significant drawback.

Strong Security Framework and Proactive Vulnerability Management

The DS425+ benefits from Synology’s broader emphasis on security, offering a robust framework for data protection, secure remote access, and proactive threat mitigation. DSM includes built-in tools such as firewall rules, auto-blocking of suspicious IPs, HTTPS configuration, and native integration with Let’s Encrypt for SSL certificates. Two-factor authentication (2FA) can be enforced per user or globally, and built-in VPN server options (including OpenVPN and L2TP/IPSec) provide secure tunnels for remote workers or offsite access. For businesses or power users hosting sensitive data, the inclusion of AES-NI hardware encryption ensures efficient at-rest protection without drastically impacting system performance.

What sets Synology apart is its ongoing commitment to security research and response. The company operates a public-facing Product Security Incident Response Team (PSIRT) and regularly updates a detailed security advisory page disclosing vulnerabilities and their mitigations. Synology also participates in Pwn2Own, a white-hat hacking competition, and runs internal bug bounty programs to uncover and patch exploits before they are discovered in the wild. This culture of transparency and preemptive action is especially valuable as NAS devices become more frequently targeted by malware and ransomware threats, particularly those exposed to the internet or used in hybrid cloud workflows.

Additionally, many DSM apps include granular permission management, audit logs, and user-based access rules, giving administrators tight control over file shares, backup targets, and service access. Synology’s Hybrid Share and Cloud Sync tools support end-to-end encryption and offer options to decouple cloud storage keys from the local system, further strengthening data sovereignty. For users concerned with long-term viability and platform trust, Synology’s structured and well-documented security practices help the DS425+ stand out against competitors that may offer more hardware but less attention to software and infrastructure hardening. This makes it a viable choice for users prioritizing data safety in either personal or professional contexts.

Questionable Long-Term Value Amid Shifting Synology Strategy

Another concern with the DS425+ is its position within Synology’s evolving product strategy, which raises questions about long-term support and ecosystem focus. Synology has recently been expanding its BeeStation and BeeStation Plus lines—pre-populated, user-friendly NAS solutions that share similar hardware (in some cases, the same J4125 CPU), but are bundled with drives and offer a simplified DSM variant tailored for general consumers. These systems, while more limited in scope, are marketed as turnkey alternatives with lower pricing and fewer user-configurable components. The DS425+, by contrast, sits awkwardly between Synology’s increasingly restrictive hardware requirements and the emerging shift toward closed, fully managed platforms.

This change in trajectory creates uncertainty for prospective buyers looking for a long-term investment. If Synology continues prioritizing its proprietary hardware and software pairings, users who prefer modularity, drive freedom, or advanced customization may find themselves increasingly constrained. As already noted, the DS425+ enforces tight compatibility rules, limits memory expansion, and restricts NVMe usage to caching only. At the same time, Synology is streamlining its portfolio around devices with even stricter limitations but more mass-market appeal. This raises the possibility that traditional “Plus” models like the DS425+ may be sidelined or see fewer feature updates in future DSM releases, as Synology shifts development toward more controlled environments.

From a cost perspective, the DS425+ is priced around $519, placing it uncomfortably close to more powerful third-party NAS systems that offer better CPUs, more RAM, and greater I/O flexibility. Competing brands frequently offer 4-bay systems with modern N-series Intel processors or embedded AMD chips, 8GB+ of memory, and faster networking, often for the same or lower price. As a result, the DS425+ risks being outclassed not only by its competition, but by Synology’s own growing lineup of prepackaged solutions. Users investing in the DS425+ today may find themselves limited not just by current specs, but by an ecosystem slowly drifting away from the prosumer and enthusiast segment this model was originally meant to serve.

Synology DS425+ NAS Review – Conclusion and Verdict

The Synology DS425+ presents a mixed proposition in 2025. On one hand, it remains a competent 4-bay NAS solution for users prioritizing software integration, low power operation, and quiet, reliable 24/7 usage. Its support for DSM 7.2 and the full suite of Synology applications—ranging from Active Backup to Surveillance Station and Synology Drive—makes it a strong turnkey platform for general-purpose storage, backup, and multimedia needs. Integrated graphics give it an edge in light media streaming scenarios, and its support for M.2 NVMe caching allows for performance optimization without occupying drive bays. It’s a well-built device that continues to “just work,” particularly in home and small office setups where reliability, simplicity, and refined software matter more than raw horsepower.

However, these strengths are increasingly offset by hardware limitations and Synology’s increasingly restrictive ecosystem. The soldered 2GB of RAM, locked 6GB memory ceiling, outdated CPU, limited I/O, and especially the enforced use of Synology-only drives all hinder flexibility and long-term value. When compared to similarly priced alternatives from competing NAS vendors—many of which offer newer processors, faster ports, and full hardware freedom—the DS425+ can feel constrained and overpriced. In addition, Synology’s expanding focus on pre-populated BeeStation devices suggests a possible shift away from traditional DIY-friendly models like this one. For users who are already invested in the Synology ecosystem or who value DSM above all else, the DS425+ may still be a worthwhile buy. But for those seeking hardware scalability, third-party compatibility, or better price-to-performance, it may be worth considering other options or waiting to see how Synology’s roadmap evolves.

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AI Console for Synology Mail Plus and Synology Office – But Should You Use It?

Note -Thanks again to Daniel from Germany for all his support and assistance for this video. Visit his site HERE

Synology has introduced a new software package called AI Console, aimed at integrating third-party AI and large language model (LLM) services directly into select Synology productivity applications. The package is available on devices running DSM 7.2 or later and supports only certain x86-64 NAS models, reflecting the higher processing and memory requirements of AI workloads.

Rather than running its own local AI engine, Synology provides a centralised management tool for connecting to established AI providers, including OpenAI, Azure OpenAI, Google Gemini via AI Studio or Vertex AI, Amazon Bedrock, and Baidu AI Cloud. Once linked using the administrator’s API key, these services can be used within Synology MailPlus and Synology Office to perform tasks such as summarising long emails, generating responses, translating text, adjusting tone, and producing refined document content.

The AI Console is designed with administration and control in mind. It allows system managers to configure access on a per-package basis, selectively enabling or excluding AI features for specific users or groups. Advanced options include setting daily or per-minute token limits for each user to control consumption and manage costs, as usage charges are determined by the chosen AI provider rather than Synology itself. For privacy protection, the Console supports a de-identification process that can mask predefined categories of sensitive data before prompts are sent to an AI provider, with the original data restored after the response is received.

Administrators can monitor adoption and usage trends through transaction logs, which capture request details such as timestamps, IP addresses, API models used, and token counts, alongside admin logs that record configuration changes. While the AI Console does not add AI functionality to all DSM applications, it focuses on extending the business-oriented MailPlus and Office suite. However, this is not a move that will please all Synology owners or buyers, as some value their NAS primarily for complete local data control and may view any cloud-connected AI integration as an unnecessary or risky addition.

Why is Synology AI Console So Contentious?

The idea of adding AI functionality to a NAS is divisive because many users adopt these systems specifically to avoid reliance on cloud-based services. A key selling point of a Synology NAS has long been the ability to store, process, and back up data entirely within the user’s own premises, retaining full control over where that data resides and who can access it.

By design, the Synology AI Console connects to external AI providers through API calls, meaning that text-based content from MailPlus or Office documents is transmitted to third-party servers for processing. Even with encryption in transit and privacy safeguards such as de-identification, this external dependency conflicts with the expectations of users who purchased a NAS to minimise exposure to external networks. This tension is heightened by the fact that the AI operations do not run locally on the NAS hardware, which for some buyers undermines the appeal of integrating AI into a device marketed for self-contained operation.

Another factor making AI use contentious is the trust and compliance aspect. Many NAS deployments are in small businesses, professional environments, or home offices handling sensitive material. Sending even anonymised extracts of communications or documents to an external service raises compliance questions for organisations bound by strict data protection rules, especially in regulated industries such as healthcare, finance, or legal services.

While the AI Console provides administrative controls, auditing tools, and the option to disable AI entirely for certain users or packages, the underlying reality remains that data is leaving the local network for processing. This creates a fundamental divide between those who welcome AI for its productivity benefits and those who see any form of off-device data processing as incompatible with the core value proposition of a private NAS.

What Security Provisions Have Synology Put in Place?

Synology’s AI Console incorporates multiple layers of control to reduce the risks associated with transmitting data to third-party AI providers. API keys for connected AI services are stored locally on the NAS rather than in the cloud, and all requests are sent directly from the device to the selected AI provider. Administrators can remove these keys at any time, immediately severing the connection. The system allows AI access to be enabled or disabled at the package level, with the option to exclude specific users or groups entirely. To prevent uncontrolled consumption, administrators can set token rate limits per user, measured either per minute or per day. Transaction logs record each AI request with details such as timestamp, source IP address, user account, API model used, and token usage, while admin logs document any configuration changes. This creates a verifiable audit trail for compliance and internal review.

Key security provisions include:

• Local storage of API keys, with no cloud-based key management.

• Direct communication between the NAS and the AI provider, bypassing Synology’s own servers.

• Ability to revoke API access instantly by deleting stored keys.

• Per-package AI enable/disable controls, with user and group-level exclusions.

• Token rate limiting to control per-user API usage.

• Detailed transaction logs for all AI requests.

• Administrative logs for configuration changes.

• Optional logging of request inputs and outputs for auditing.

For added privacy, Synology offers a de-identification feature that can mask selected categories of sensitive data before they are transmitted to the AI provider, restoring the original information once the processed output is returned. This feature can identify and anonymise common identifiers such as names, email addresses, IP addresses, banking details, and various country-specific personal or business numbers. De-identification relies on a combination of AI-driven semantic analysis and predefined regular expression rules, giving administrators control over which data types are masked. It requires the installation of the Container Manager package and a minimum of 8 GB of RAM, with each enabled language model consuming roughly 1 GB of memory. Although Synology notes that de-identification cannot guarantee 100% masking, the mechanism is intended to significantly reduce the chance of exposing sensitive details during AI processing.

Synology Mail Plus and AI Console Integration

When enabled for Synology MailPlus, the AI Console provides a set of functions aimed at improving email efficiency through automated text processing. Within the MailPlus interface, users can generate short or detailed summaries of incoming emails, which can help quickly assess lengthy messages without reading them in full. The AI assistant can also draft replies based on user instructions, with options to adjust tone, length, and formality, or translate the response into a supported language. All AI processing is text-based, with attachments excluded from transmission to the AI provider. The system also supports “Help me write” prompts directly within the reply editor, allowing for quick generation of tailored responses that can be inserted and then edited before sending. Importantly, these capabilities are only available to users granted AI permissions by the administrator, and all actions are recorded in transaction logs for review.

The integration offers multiple editing refinements, including making a message more formal or casual, shortening or lengthening text, and translating to or from languages supported by the connected AI model. Users can also rephrase replies entirely or request alternative drafts. Although these capabilities are similar to features found in other email platforms that integrate AI, the implementation within MailPlus is designed to remain under the control of the NAS administrator, with optional de-identification masking personal data before it is sent to the provider. Responses are generated by the third-party AI service configured in AI Console, and processing occurs only when the user explicitly invokes an AI function, avoiding any automated sending of content without user action.

From a functional perspective, MailPlus AI integration is targeted primarily at professional or business environments that run their own Synology-hosted mail server. It can streamline response drafting, reduce time spent on routine communication, and support multilingual correspondence. However, the scope is currently limited to text-based tasks, with no AI-driven attachment analysis, advanced categorisation, sentiment detection, or automated email sorting included. The feature set also lacks customisable style profiles beyond the basic tone and length adjustments, meaning more specific brand or sector language must still be applied manually. The value for each organisation will depend on how frequently staff interact with longer, more complex emails, and whether the trade-off of involving an external AI service aligns with internal data handling policies and compliance requirements.

Synology Office and AI Console Integration

In Synology Office, AI Console integration extends across the suite’s document, spreadsheet, and presentation tools, embedding AI-assisted functions within the existing editing interface. In documents, the AI assistant can summarise entire files, rewrite selected sections, adjust tone, translate content, or improve grammar. These actions can be applied either through a right-click contextual menu or via a dedicated AI sidebar that displays results alongside the original content. Users can choose to insert AI-generated revisions directly into the file or keep them separate for manual comparison. The system maintains Office’s existing version history, meaning any AI-driven edits can be rolled back without data loss.

In spreadsheets, the integration is aimed at assisting with formula comprehension and basic data interpretation. Users can request explanations of specific formulas, generate new formulas from plain-language prompts, or run simple calculations without manually writing functions. The AI can also produce summaries of table data, although its analytical depth is limited compared to dedicated business intelligence tools. As with documents, processing is restricted to text-based content; the system does not transmit embedded images or charts to the AI provider. Administrators can control whether AI features are available in spreadsheets, allowing them to be enabled for certain user groups while remaining disabled for others.

For presentations, the AI can refine slide text, translate content, or expand bullet points into fuller sentences, making it useful for producing alternate versions of existing material. The functionality mirrors what is available in documents, with tone and length adjustments as well as grammar checks. However, it does not currently create entirely new slide decks or visual layouts from prompts. The processing workflow remains the same across all Office formats: only when a user explicitly triggers an AI action is the relevant text sent to the configured provider, and all requests are recorded in the AI Console’s transaction logs.

Overall, the Synology Office integration offers consistent AI tools across its core applications, focusing on editorial and language-based support rather than data-driven automation. While the scope is narrower than AI-enabled features in some third-party office suites, the implementation maintains administrative control and allows for selective deployment, making it adaptable to environments where privacy considerations limit the use of external services.

What Features of AI/LLM Are Not Present?

Although the Synology AI Console brings AI-assisted functions to MailPlus and Office, it does not provide the same breadth of capabilities found in some competing platforms. There is no locally hosted AI model option, meaning all processing is dependent on a live connection to a third-party provider. As a result, the system lacks offline functionality, GPU-accelerated local workloads, or support for running open-source LLMs within the NAS environment. In practical terms, this means that all AI operations involve external processing, which may not suit users who require fully on-premises data handling.

Beyond the infrastructure level, several functional gaps remain. The integration does not extend to all DSM applications, omitting areas such as File Station, Photo Station, Synology Photos, and Surveillance Station. Within MailPlus and Office, the AI features are focused on text editing and basic summarisation rather than broader automation. There is no built-in capability for sentiment analysis, advanced data analytics, automatic categorisation, or content generation from large datasets. Similarly, the AI Console does not currently allow multi-step task automation or integration with custom scripts, limiting its use to predefined actions within the supported productivity tools.

Is Synology AI Console Safe?

From a technical and administrative perspective, Synology has implemented several measures to protect data when using the AI Console. API keys are stored locally on the NAS, and requests to AI providers are sent directly from the device rather than passing through Synology-operated servers. Administrators can limit access to specific packages, exclude selected users or groups, set token usage caps, and monitor all AI interactions through detailed logs. For additional privacy, the optional de-identification feature can mask sensitive details such as personal identifiers, banking information, and IP addresses before prompts are transmitted, restoring them only after the AI provider returns a response.

However, the safety of the AI Console ultimately depends on the chosen AI provider and the user’s own policies. All processing occurs on the provider’s infrastructure, meaning data leaves the local network whenever AI features are used. Even with encryption and masking in place, this external dependency may be unacceptable in environments with strict regulatory requirements or where complete local control is mandatory. While Synology provides the tools to minimise risk and monitor usage, it is the administrator’s responsibility to select a compliant provider, configure de-identification appropriately, and ensure that AI features are only enabled where the security implications are fully understood.

Here is my video on the original reveal of AI Integration/Connection into Synology DSM when it was first shown off during the Synology Solution Exhibition back in 2023 in Taipei:

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