Antec P50 Black Micro ATX Computer Case Motherboard Compatibility: Micro-ATX / Mini-ITX Front Ports: 2 x USB 3.0 / 2 x USB 2.0 / 2 x Fan control (High/off / Low) 120mm Fans: 2 x 120 mm + 1 x 80mm front intake fans (included) 2 x 120 mm top exhaust fans (optional) External 5.25 Drive Bays: 1 Internal 3.5 Drive Bays: 3 Internal 2.5 Drive Bays: 2