Corsair Office Products Computer Case Motherboard Compatibility: Micro ATX / ATX (Up to 272mm) / Mini-ITX Front Ports: 2 x USB 3.0 / 1 x Headphone Port / 1 x Microphone Port 120mm Fans: Front: 3 x 120mm or 2 x 140mm (1 x 120mm Red LED Included) Top: 2 x 120 / 140mm Rear: 1 x 120mm (1 x 120mm Included) Side Panel Window: Yes External 5.25 Drive Bays: 0 Internal 3.5 Drive Bays: 2 Internal 2.5 Drive Bays: 2