SilverStone FT05B Fortress Series Aluminum Front / Steel Body / ATX Black Computer Case Motherboard Compatibility: SSI-CEB, ATX, Micro-ATX Front Ports: USB 3.0 x 2 Audio x 1 MIC x 1 120mm Fans: 120mm fan slot x 1 Internal 3.5 Drive Bays: 2 Internal 2.5 Drive Bays: 2 Expansion Slots: 7 180mm Fans: Bottom: 180mm AP fan x 2, 600/900/1200rpm, 17/25/34dBA Downward compatible with 120mm fan x 3, or 140mm fan x 2