With Power Supply: Standard ATX PS2 (optional) Power Supply Mounted: Bottom With Side Panel Window: No External 5.25" Drive Bays: 4 External 3.5" Drive Bays: 1 Internal 3.5" Drive Bays: 5 Front Ports: USB 2.0 x 2 , Mic x 1 , Audio x 1 Side Air duct: No