Motherboard Compatibility: 12" x 13" E-ATX Power Supply: 865W External 5.25" Drive Bays: 2 Hot-Swap Drive Bays: 8 Expansion Slots: 7 External Slim Drive Bays: 1 x 5.25" Bay For Floppy Drive Dimensions: 25.5" x 17.2" x 7.0" Features: 2x Super Quiet Chassis Fans 1x Super Quiet Rear Fan