SilverStone Precision Series PS10B Black High-strength plastic front panel, steel body ATX Mid Tower Computer Case with Foam Padded Side Panel - Retail Motherboard Compatibility: Micro ATX / ATX Front Ports: USB 3.0 x 2 Audio x 1 MIC x 1 120mm Fans: Front: 1 x 120mm intake fan, 1 x 120mm fan slot Rear: 1 x 120mm fan slot Top: 2 x 120mm fan slot or 2 x 140mm fan slot Power Supply Mounted: Bottom External 5.25 Drive Bays: 4 Internal 3.5 Drive Bays: 3.5 x 5 or 2.5 x 5 Expansion Slots: 7