3 Things to Know About the DS1823xs+ M.2 Slots

M.2 slots are cache-only The two M.2 slots on the DS1823xs+ cannot be used for NVMe storage pools. They only support caching, which speeds up metadata-heavy tasks.

No NVMe storage pools Synology does not allow creating storage pools on the M.2 drives. You are limited to using them solely for read or write cache.

SATA drives are your only storage All data must go on the eight SATA bays. Use standard 3.5-inch or 2.5-inch SATA drives for your actual storage.