Fractal Design Core 1100 Black MATX Mini Tower Computer Case Motherboard Compatibility: Micro-ATX / Mini-ITX Front Ports: 1 x USB 3.0 / 1 x USB 2.0 / Audio in/out 120mm Fans: Front: 1 x 120mm fans (included is 1 Fractal Design silent 120mm fan, 1200 RPM speed) Side: 1 x 120mm fan (not included) External 5.25 Drive Bays: 2 Internal 3.5 Drive Bays: 2 x 3.5/3 x 2.5/1 x 2.5 and 1 x 3.5drive positions Expansion Slots: 4