Ultra - U12-41933 - XB Mid-Tower V2 Case - ATX, MicroATX, USB 2.0, Audio, 6x 3.5" Bays, 3x 5.25" Bays, 7x PCI Slots, Includes 450W PSU 450W Power supply; operates your PC system with 450W of energy Four 120mm fan ports; offer maximum cooling using up to four 120mm fans Four 5.25in External Drive bays; enable you to attach up to four accessible hard drives and optical drives One 3.5in External Drive bay; fits any 3.5in external drive to the PC system Six 3.5in Internal Drive bays; provide spaces for most of the essential internal components such as the motherboard and video card