Motherboard Compatibility: Support EEB (12"x13"), CEB(12"x10.5"), ATX (12"x9.6") External 5.25" Drive Bays: 1 External 3.5" Drive Bays: 1 Internal 3.5" Drive Bays: 8 Front Ports: USB 80mm Fans: 4 Dimensions: 16.9" x 25.5" x 4.3" Features: Smooth border prevent lacerating your skin