RackStation RS820RP+ Redundant Power without Rack Kit (options: RKM114 or RKS1317) | CPU Intel Atom C3538, 64 bit, Quad Core 2.1 GHz | 2 GB DDR4 | 4 x 3.5"/2.5" SATA HDD/SSD Drive Bays | Maximum Internal Raw Capacity: 64 TB (16 TB HDD x 4) Hot Swappable Drives | 2 x USB 3.0 Port, 1 x eSATA | 4 x RJ-45 1GbE LAN Port (with Link Aggregation / Failover support) | PCIe Expansion 1 x Gen3 x8 slot (black, x4 link) | Form factor: 1U | Power Consumption: 38.88 W (Access) / 22.17 W (HDD Hibernation), 2xSynology HDD 12TB 3.5” Enterprise SATA 6GB/s 7200 rpm 256 MiB 2.5 million hours MTTF, 1xFixed rail solution with easy installation design, for Synology 1U RackStation models