Best answer: No, Synology doesn't currently allow NVMe M.2 SSDs to be used for storage. You can use M.2 drives installed on a Synology NAS for only caching.
[h=3]No NVMe storage support[/h]Synology does not allow the use of NVME SSDs for storage on NAS enclosures, not even the best Synology NAS. It's a little confusing for those who buy NAS enclosures with M.2 slots only to realize these are limited to caching only. So, what gives? Why is Synology handicapping data transfer speeds?
Full story from the WindowsCentral blog...