Best M.2 NVMe for the Synology DiskStation DS925+
By Devin Chua · Data checked by Owen Nakamura · Updated · Prices checked The DS925+'s 2 M.2 slots take 2280 NVMe drives, and Synology's compatibility list for it names only its own SNV3400, SNV3410 and SNV5420 drives, which Synology requires for both cache and storage pools. The DSM 7.3 change of 8 October 2025 covered hard drives and 2.5-inch SATA SSDs, not M.2. Whether a cache pays off depends on the 2 × 2.5GbE link and on whether you re-read the same data; for a media library streamed once, it does not.
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Want to know whether the DS925+ fits your actual storage plan? Open the NAS Builder with this model weighted.
M.2 NVMe for the DS925+, from Amazon.ca
| Model | Capacity | Price | |
|---|---|---|---|
 Synology SNV3410 400GB M.2 2280 NVMe PCIe 3x4 SSDNew On Synology's M.2 compatibility list for the DS925+ Amazon.ca · sold by MaxSalesFr · one bare SSD; shipping and taxes not included · checked Oct 15, 2026CA$941Buy on Amazon | 0.4 TB | CA$941 | Buy on Amazon |
Fits physically, not on Synology’s list
not on Synology's M.2 compatibility list for this model, which Synology requires for cache and pools These are shown for reference, not as picks.
Fit not confirmed by Synology
We could not confirm these against Synology’s published specifications: the listing does not state the M.2 length. Check them against your unit before buying; they are not counted as compatible.
Left out as not fitting the DS925+: 2 listings (M.2 2230).
Cache or a fast pool on the DS925+?
The DS925+'s 2 M.2 slots take 2280 NVMe drives, and Synology's compatibility list for it names only its own SNV3400, SNV3410 and SNV5420 drives, which Synology requires for both cache and storage pools. The DSM 7.3 change of 8 October 2025 covered hard drives and 2.5-inch SATA SSDs, not M.2. A cache only speeds up data you read more than once: on the DS925+, a media library streamed through once gains nothing, while repeated project files, photo libraries or container images show the difference immediately. Weigh that against its 2 × 2.5GbE link, which is often the real limit.
Budget for that list when you plan a cache or a pool: on the DS925+ it is the one place Synology still enforces a drive list, and the drives on it cost more per TB than consumer NVMe.
Drive policy: Since DSM 7.3 (8 October 2025) the DS925+ accepts third-party hard drives and 2.5-inch SATA SSDs for new storage pools; only M.2 NVMe still has to come from Synology's list. The DS925+’s full compatibility rules.
Keep calculating
To see how much capacity is left after parity, the DS925+ capacity calculator is preset to its 4 bays and RAID types. For the DS925+, the wider basics of choosing a drive are in the buying guides, and CMR versus SMR explains why SMR drives do not belong in a RAID array. Wondering what the DS925+ can actually do: Plex, Immich, Docker, VMs? See what the DS925+ can run.
Frequently asked questions
How many M.2 slots does the DS925+ have?
2. 2 × M.2 NVMe. Note: for BOTH an NVMe cache and an NVMe storage pool, Synology still requires a drive from its own compatibility list. That is the remaining lock.
Is an NVMe cache worth it in the DS925+?
Only if you re-read the same data on the DS925+: project files, photos, container images. A media library streamed once gains nothing, and with 2 × 2.5GbE the link is often the limit before the drive is.
Can I put any NVMe in the DS925+?
No. The DS925+'s 2 M.2 slots take 2280 NVMe drives, and Synology's compatibility list for it names only its own SNV3400, SNV3410 and SNV5420 drives, which Synology requires for both cache and storage pools. The DSM 7.3 change of 8 October 2025 covered hard drives and 2.5-inch SATA SSDs, not M.2.
Can I put third-party drives in the DS925+?
Yes. Since DSM 7.3 (8 October 2025) the DS925+ accepts third-party hard drives and 2.5-inch SATA SSDs for new storage pools; only M.2 NVMe still has to come from Synology's list.
Devin Chua works out which drives, RAM and NVMe cache fit which NAS model at nasdrives.ca, and what the RAID choice means for usable capacity, checked against what is in stock on Amazon.ca.
Data checked by Owen Nakamura, Technical editor (data checking)