Chasis : 1U Rack CPU : 1 x Intel Xeon E3-1230v6, FCLGA1151 RAM: 1 x 16GB, Up to 64 GB RAM: 4 DIMMs slots, Up to 2400MT/s DDR4 DIMMs HDD Bays : - Internal Storage (max) : Up to 4 internal 3.5-inch cabled or hot-plug hard drives On board network : NIC BCM5720 2p Internal Raid Controllers : N/A PCI Slots : 2 x PCIe 3.0 slots: x16 slot, full-height (1x8 3.0)+ x8 slot, low-profile (1x4 3.0) USB: Rear: 2 x USB 3.0 ports, Front: 2 x USB 2.0 ports, Internal: 1 x USB 3.0 port PSU: 1 x 250 W