Boost storage performance for demanding workloads Synology M2D2 is a M.2 NVMe SSD adapter card designed to supercharge your NAS I/O performance. The multi-queue capability of NVMe SSD greatly benefits latency-sensitive applications such as photo indexing, file search, and virtualization deployments. - Accelerate random I/O performance with the dual M.2 228/2211 NVMe SSD slots. - Free up primary drive bays for data storage. - Upgrade your existing storage infrastructure efficiently.