Cooler Master HAF XB EVO - High Air Flow Test Bench and LAN Box Desktop Computer Case with ATX Motherboard Support Motherboard Compatibility: Micro ATX / ATX / Mini-ITX Front Ports: 2 x USB 3.0 / 1 x HD Audio In & Out 120mm Fans: Front: 2 x 120mm XtraFlo fan (installed; 1200 RPM, 17 dBA) or 2 x 140mm fan (optional) Rear: 1 x 120mm fan or 1 x 80mm fan (optional) Power Supply Mounted: Bottom External 5.25 Drive Bays: 2 Internal 3.5 Drive Bays: 4