Synology DS225+ compatible drives, by DSM version, with the DS925+ list

DS225+ compatible drives: Synology’s list in one table

Synology’s compatibility list for the DS225+ has 41 rows, and every drive on it is a Synology drive: 22 hard drives and 19 SSDs, each listed with a firmware version and the DSM version to install first. For its 4 SATA bays the DS925+ list is the same: we compared the two lists row by row and found the same 41 rows, with the same firmware and the same minimum DSM versions. The DS225+ has 2 bays, and its Product Spec names two drive types for them: 3.5″ SATA HDD and 2.5″ SATA SSD.

The column “Install DSM first” is Synology’s note on each drive: upgrade DiskStation Manager (DSM) to that version or later before installing the drive. Synology writes that note for the drive, so read it as a check on your DSM version, not as the version your NAS runs. A drive that isn’t on the list is a separate case, covered by Synology’s DSM 7.3 policy further down.

Checked against Synology’s Products Compatibility List, HDD/SSD via internal slot, for the DS225+ (opens in a new tab) and the DS925+ (opens in a new tab), Synology’s article on drive compatibility policies (opens in a new tab), and the DS225+ Product Spec (opens in a new tab) (Last updated: Aug 6, 2026) and DS925+ Product Spec (opens in a new tab) (Last updated: Aug 6, 2026); records verified on 2026-10-29.

DS925+ compatible drives: the same SATA list, plus M.2

Everything in the table above applies to the DS925+ bays as well. What the DS925+ adds is 2 M.2 slots for M.2 2280 NVMe SSD, with a list of their own: ten rows, all Synology SNV-series SSDs. Synology lists storage pool creation as a use for those slots. The DS225+ Product Spec names no M.2 drive type, so these rows are for the DS925+ only.

Synology’s note on the M.2 list reads: “Directly install M.2 SSDs through the built-in M.2 slots on your Synology NAS.” Source: DS925+ M.2 SSD list (opens in a new tab).

Synology drive compatibility from 2025: what DSM 7.3 allows

The storage note in each Product Spec points to a Synology Knowledge Center article, Drive compatibility policies FAQs for Synology storage systems starting from 2025 (DSM 7.3 and above) (opens in a new tab). The DS225+ and the DS925+ fall under its table for DS Plus and desktop models of FS series (DSM 7.3). That table sorts a drive into three cases (on the list, not on the list, incompatible) and says what each case allows from DSM 7.3:

“Not stated” means the policy table doesn’t name cache for hard drives. For an M.2 SSD that isn’t on the list, Synology adds: “Drives must be migrated directly from an existing Synology system. If the original storage pool or SSD cache is removed from the drive, the drive will no longer be usable in your current Synology system.” Source: Drive compatibility policies (opens in a new tab), Synology Knowledge Center.

Two more lines from Synology matter for a drive that isn’t on the list. On the DS225+ list: “For drives not on the compatibility list, Synology can only provide limited support for system hardware, software, and configuration. Support will not extended to issues caused by the drive itself or its firmware.” In the DS225+ Product Spec: “Synology only guarantees full functionality, reliability, and performance for compatible drives. Please consult our compatibility list before purchasing hard drives.“

Which means that on DSM 7.3 a hard drive from another brand, which is on neither list, can still be used, unless Synology marks it incompatible, to install DSM and to create a storage pool on the DS225+ and the DS925+, and can come over from another Synology system, but Synology limits its support for problems caused by that drive. On the DS925+, an M.2 SSD that isn’t on the list can arrive only by migration from another Synology system.