Synology DS925+ NAS Released (In the East!)

Synology DS925+ NAS Officially Launches in Eastern Markets – Full Specs and Features Confirmed

Following early retailer listings and semi-official leaks earlier this year, the Synology DS925+ NAS has now been formally launched in Eastern markets, including Taiwan, Japan, and China. With full documentation and product pages now publicly available, we finally have confirmation of the system’s complete hardware and software capabilities, as well as early indications of pricing and the compatibility of Hard Drives and SSDs (something of a hot button topic of late). As expected, this system builds on the DS923+’s foundation but introduces key changes that shift its performance profile and position within the Synology portfolio once again!

At the heart of the DS925+ is the AMD Ryzen V1500B, a quad-core, eight-thread processor previously used in larger business-class NAS models like the DS1621+, DS1821+, and DS2422+. Its integration into a 4-bay unit marks the first time this CPU has appeared in Synology’s enthusiast/prosumer tier, bringing greater virtualization, multi-user performance, and multitasking efficiency to this class. With a base frequency of 2.2 GHz and TDP of 16W, the V1500B is a lower-power but more scalable chip compared to the dual-core R1600 in the DS923+, which has a higher clock but fewer threads. This change benefits users focused on Docker, VMs, or simultaneous file operations.

Specification	AMD Ryzen Embedded V1500B	AMD Ryzen Embedded R1600
Cores / Threads	4 Cores / 8 Threads	2 Cores / 4 Threads
Hyperthreading	Yes	Yes
Base Frequency	2.20 GHz	2.60 GHz
Turbo Frequency (1 Core)	Not Supported	Up to 3.10 GHz
Turbo Frequency (All Cores)	Not Specified	Not Specified
Overclocking	No	No
TDP	16W	25W
Cache (L1 / L2 / L3)	384KB / 2MB / 32MB	192KB / 1MB / 4MB
Socket Type	BGA1140	BGA1140
Architecture	Zen (Normal)	Zen (Normal)
CPU Class	Embedded / Mobile	Embedded / Mobile
First Seen	Q2 2021	Q4 2022
Single Thread Rating (CPUBenchmark)	1230 (-28.7% vs R1600)	1724 (Higher)
CPU Mark (Overall) (CPUBenchmark)	4829 (Higher)	3276 (-32.1% vs V1500B)
Estimated Yearly Power Cost	$2.92	$4.56

Confirmed in the datasheet is the DS925+’s dual 2.5GbE network ports, supporting Link Aggregation (LAG) and SMB Multichannel, allowing up to 5GbE aggregate throughput—a significant improvement over the DS923+’s 2x 1GbE configuration. Expansion also sees a shift: the DS925+ uses the new DX525 expansion unit, connected via USB-C (6Gbps), replacing the legacy eSATA-based DX517. Internally, the system includes four hot-swappable drive bays (3.5″/2.5″ SATA HDD/SSD), and two M.2 2280 NVMe Gen 3 slots for SSD caching or storage pools (when using Synology’s SNV series drives).

Memory support includes 4GB of DDR4 ECC by default, expandable up to 32GB via two SODIMM slots, and the system supports 200TB volumes (with 32GB RAM) and up to 32 internal volumes. Storage management features are as expected from DSM 7.2+, including Snapshot Replication, Hyper Backup, Active Backup for Business, and Hybrid Share. While the system does not support 10GbE upgrades (removal of mini PCIe slot), Synology appears to be emphasizing strong native network performance and reduced complexity over modular upgrades.

Physically, the chassis weighs 2.26kg, has two 92mm fans, and offers 2 x USB 3.2 Gen 1 ports, alongside one USB-C expansion port. It operates within a 0°C to 40°C range, supports high altitudes up to 5,000m, and includes all standard Synology DSM security tools: firewalls, encrypted folders, SFTP, HTTPS with custom ciphers, and Adaptive MFA. As a data platform, the DS925+ supports 500,000 hosted files in Synology Drive, up to 80 Office users, and 150 Synology Chat users. On the virtualization side, it supports VMware, Hyper-V, Citrix, OpenStack, and allows for up to 8 virtual DSMs or VM instances (license-dependent). Surveillance support includes two default camera licenses, and scalable support for up to 40 IP cameras at 1200FPS (H.265), with full integration into Surveillance Station and optional C2 cloud backup.

Synology DS925+ Pricing and Availability

Following the official launch of the Synology DS925+ NAS in Eastern markets—including Taiwan, China, and Japan—we now have more concrete pricing details. In China, the base unit without drives is priced at ¥4,999, which converts to approximately £500 before tax. Pre-configured options are also being sold, featuring combinations of Synology’s own-branded hard drives in 4TB, 8TB, 16TB, and even 64TB arrays. For example, a DS925+ with 2 x 8TB Synology drives (16TB total) is listed at ¥8,469 (~£845 pre-tax), while a fully populated 64TB configuration with 4 x 16TB drives is priced at ¥14,919 (~£1,490 pre-tax). In the UK and other Western markets, the DS925+ is expected to launch in early May, with Amazon UK listings already live very briefly last week before it was taken offline, showing the base unit at £550 including VAT. Here’s a rough estimate pricing table for the Synology DS925+ configurations, converted from Chinese Yuan (CNY) to both US Dollars (USD) and British Pounds (GBP) using the exchange rates as of April 22, 2025 (remember this does not precisely calculate tax across nations and their currencies, so these are for rough guidance only):

• 1 Yuan= 0.1371 USD

• 1 Yuan = 0.1025 GBP​

Note: Prices are approximate and based on exchange rates as of April 22, 2025. Actual prices may vary due to fluctuations in exchange rates and regional pricing policies with regard to inclusive tax at checkout.

The accompanying DX525 5-bay USB-C expansion chassis—which replaces the legacy DX517 and uses a similar metal casing—is priced at £439. These prices align with Synology’s long-standing strategy of maintaining consistent MSRP targets for its 2-, 4-, and 5-bay Prosumer-tier NAS units year-over-year, even when internal hardware evolves.

Synology DS925+ NAS HDD Compatibility in 2025

One of the biggest shifts accompanying the DS925+ release is Synology’s newly enforced drive compatibility policy on 2025 and newer NAS systems. Starting with this model, only drives listed on the official Product Compatibility List (PCL) will be supported during initial installation. At launch, this list consists exclusively of Synology-branded HDDs and SSDs, though Synology has confirmed that it plans to expand the third-party validation program moving forward. This move represents a broader shift by Synology toward an appliance-like ecosystem, citing increased reliability, faster support diagnostics, and significantly reduced system anomalies when validated media is used. According to the company, using listed drives can reduce storage-related issues by up to 40%, while severe disk anomalies on newer systems have reportedly decreased by as much as 88% under the new policy. Even though the DS925+ NAS has not been globally launched, in the regions it HAS been launched (China, Australia and Jopan, at the time of writing) it has opened up access to the DS925+ hard drive compatibility pages. Here is what you will find:

Practically speaking, this doesn’t mean you can’t install third-party drives (e.g. Seagate or WD), but using unlisted drives may limit your access to certain features—such as volume creation, deduplication, disk health analytics, automatic firmware updates, and even eligibility for Synology technical support. Fortunately, drive migrations from older Synology systems are supported, and older Plus series models (up to and including 2024) remain unaffected.

Still, new users and businesses investing in DS925+ hardware should factor these limitations into their decision, especially if they plan on using existing non-Synology drives. We are still awaiting FULL confirmation on the extent of the utility of 3rd party HDDs in realword use however. For example – can you even initialize a Synology DS925+ NAS with unverified Synology Hard Drives? There have been claims online that you cannot – but until this is fully verified, I/we will need to hold off full judgement!

Final Thoughts

The Synology DS925+ marks a meaningful update to the company’s 4-bay Plus series—bringing improvements in multi-core processing, networking, and system efficiency. The shift to a more capable 4-core, 8-thread AMD V1500B CPU, combined with 2.5GbE networking and modernized expansion via USB-C, ensures this model is better suited to the needs of virtualized, multi-user, and SMB environments. Yet, some users will see the removal of the PCIe slot for 10GbE upgrades as a notable loss, especially compared with the DS923+ which retains this feature.

That said, the DS925+ does benefit from many refinements learned across the Synology portfolio, and its arrival coincides with a broader strategy shift—one that tightens integration between hardware and software while prioritizing platform consistency. This NAS is clearly aimed at power users and businesses ready to invest in Synology’s controlled ecosystem, and for those who are fine with that trade-off, it offers a lot of value. However, prospective buyers who are still committed to third-party drives or planning future high-speed networking upgrades may want to carefully weigh their long-term priorities before making a decision.

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