Synology RS1619xs+ 4-bay RackStation (up to 16-bay), Quad Core 2.2 GHz, 8GB RAM (up to 64GB)
Synology 4-Bay Rackmount NAS , CPU : Intel Xeon D-1527 Quad Core 2.2 GHz (64-bit) , Memory : 8 GB DDR4 ECC (Up to 64 GB) , Drive Bay : 4 (Up to 16) , M.2 Drive Slots : 2 (NVMe & SATA) , LAN Port : 4 x RJ-45 1GbE , USB Port : 2 x USB 3.0 , PCIe Expansion : 1 x Gen3 x8 slot , Redundant Power Supply