Chasis : 2U Rack CPU : 2 x Intel Xeon E5-2640, FCLGA2011 RAM : 2 x 4GB, Up to 768 GB RAM Slots : 24 DIMM sockets, DDR3 HDD Bays : - Internal Storage (max) : 16 x 2.5” HDD, Up to 28.8 TB On board network : 1x NIC-4p Internal Raid Controllers : M5110e PCI Slots : Slot 1: PCIe 3.0 x 8, full-height, full-length, Slot 2: PCIe 3.0 x 8, full-height, half-length, Slot 3: PCIe 3.0 x 8, full-height, half-length USB: rear 4 x USB 2.0, front 2 x USB 2.0, internal 2 x USB PSU: 2 x 550W