Synology RackStation RS4021xs+ (RS4021XS+)

RackStation RS4021xs+ without Rack Kit compatible with Synology SATA HDD/SSD ONLY | CPU Intel Xeon D-1541, 64 bit, 8 Core 2.1 (base) / 2.7 (turbo) GHz | 16 GB DDR4 ECC UDIMM | 16 x 3.5″/2.5″ SATA HDD/SSD Drive Bays | Maximum Drive Bays 40 with 2 Expansion Units| 2 x USB 3.2 Gen 1 Port, 2 x Expansion Port | 4 x RJ-45 1GbE LAN Port (with Link Aggregation / Failover support); 2 x RJ-45 10GbE LAN Port (with Link Aggregation / Failover support) | Form factor: 3U