Antec P100 Black ATX Mid Tower Computer Case Motherboard Compatibility: Micro ATX / ATX / Mini-ITX Front Ports: 2 x USB 3.0 with internal motherboard connector, 2 x USB 2.0, Audio In/Out 120mm Fans: 1 x 120 mm top exhaust fan 1 x 120 mm rear exhaust fan External 5.25 Drive Bays: 2 Internal 3.5 Drive Bays: 7 x 3.5 (2.5 ) Internal 2.5 Drive Bays: 7 x 2.5 (3.5)