Overview
- DSM 7.3 enables installation and storage‑pool creation with non‑validated 3.5-inch HDDs and 2.5-inch SATA SSDs on 2025 Plus, Value, and J‑series models.
- M.2 NVMe used for storage pools or caching still must be on Synology’s hardware compatibility list.
- Owners must upgrade affected NAS units to DSM 7.3 to remove the third‑party drive limitation.
- The update covers DS225+, DS725+, DS425+, DS925+, DS1525+, and DS1825+, which had reduced features for non‑validated drives earlier this year.
- Synology says it is working with drive manufacturers to expand certified options after widespread criticism and reports of weaker 2025 sales.