Thermaltake CORE V41 ATX Mid Tower Gaming Computer Case CA-1C7-00M1WN-00 Mid Tower M/B Type: ATX (12.0" x 9.6"), MicroVAX (9.6" x 9.6"), Mini ITX (6.7" x 6.7") External Bay: 2x 5.25", 1x 3.5" (Converted from one 5.25" drive bay) Internal Bay: 6x 3.5" or 6x 2.5" Expansion Slots: 8 Front I/O Panel: 2x USB 3.0 Ports, 1x HD Audio