Best M.2 NVMe for the Synology DiskStation DS923+
By Devin Chua · Data checked by Owen Nakamura · Updated · Prices checked The DS923+'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. Whether a cache pays off depends on the 2 × 1GbE, expandable to 10GbE with the E10G22-T1-Mini add-in card link and on whether you re-read the same data; for a media library streamed once, it does not.
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M.2 NVMe for the DS923+, 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 DS923+ 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 DS923+: 2 listings (M.2 2230).
Cache or a fast pool on the DS923+?
The DS923+'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. A cache only speeds up data you read more than once: on the DS923+, 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 × 1GbE, expandable to 10GbE with the E10G22-T1-Mini add-in card link, which is often the real limit.
Budget for that list when you plan a cache or a pool: on the DS923+ 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: Synology's 2025 drive policy applies only to models launched from 2025, so the DS923+ takes third-party hard drives and 2.5-inch SATA SSDs as it always has. The DS923+’s full compatibility rules.
Keep calculating
To see how much capacity is left after parity, the DS923+ capacity calculator is preset to its 4 bays and RAID types. For the DS923+, 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 DS923+ can actually do: Plex, Immich, Docker, VMs? See what the DS923+ can run.
Frequently asked questions
How many M.2 slots does the DS923+ have?
2. 2 × M.2 NVMe. NVMe cache is unrestricted; an NVMe storage pool requires a Synology-approved drive (that has always been the case here).
Is an NVMe cache worth it in the DS923+?
Only if you re-read the same data on the DS923+: project files, photos, container images. A media library streamed once gains nothing, and with 2 × 1GbE, expandable to 10GbE with the E10G22-T1-Mini add-in card the link is often the limit before the drive is.
Can I put any NVMe in the DS923+?
No. The DS923+'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.
Can I put third-party drives in the DS923+?
Yes. Synology's 2025 drive policy applies only to models launched from 2025, so the DS923+ takes third-party hard drives and 2.5-inch SATA SSDs as it always has.
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)