Chasis : Tower CPU : 1 x Intel Core i3-3220, FCLGA1155 RAM : 2 x 4 GB, Up to 32 GB RAM Slots : 4 DIMM slots, DDR3 1600/1333/1066MHz HDD Bays : - Internal Storage (max) : Up to 16 TB LFF (4 x 3.5") On board network : 2 x NIC Internal Raid Controllers : B120i PCI Slots : Up to 4 x PCIe slots USB: 4 front, 4 rear, 1 internal standard USB and 1 internal USB header PSU: 2 x 460 W