DIYPC Alpha-GT3 Black Acrylic and Aluminum ATX Bench Case Bench Computer Case for ATX/Micro ATX motherboard – PC components not included Motherboard Compatibility: Micro ATX / ATX Front Ports: 1 x USB 2.0, 1 x USB 3.0; 1 x headset / 1 x mic External 5.25 Drive Bays: 1 ~ 2 x 5.25 External 3.5 Drive Bays: 1 ~ 3 x 3.5 Expansion Slots: 7 External 2.5 Drive Bays: 1 ~ 2 x 2.5 Max GPU Length Allowance: 400 mm