Thermaltake Versa H22 Mid-Tower Case CA-1B3-00M1NN-00 SPCC ATX 7 x Expansion Slots 3 x 5.25 External Drive Bays Motherboard Compatibility: 9.6 x 9.6 (Micro ATX) 12 x 9.6 (ATX) Front Ports: 1 x USB 3.0, 1 x USB 2.0, 1 x HD Audio 120mm Fans: Front (intake): 120 x 120 x 25mm x 2 (optional) Rear (exhaust): 120 x 120 x 25 mm Turbo fan (1000rpm, 16dBA) With Power Supply: Standard PS2 PSU (optional) External 5.25 Drive Bays: 3 Internal 3.5 Drive Bays: 3 x 3.5 or 2.5 Internal 2.5 Drive Bays: 3