Server, NAS, Btrfs, 100-240VAC, 50/60Hz, 1 Phase, CPUIntel Atom C2538/64-bit/Quad Core 2.4GHz, 2GB DDR3,12x Drive Bays, 2x USB 2.0 /2x USB 3.0/4x RJ-45 1GbELAN Ports, Raid SATA Controller, Redundant Pwr Sply,2U Rackmount, RoHS