120mm Fans: 1 x 120mm TriCool rear fan with 3-speed switch control 2 x 120mm TriCool blue LED front fans with 3-speed switch control to cool HDDs 80mm Fans: No Expansion Slots: 7 External 3.5" Drive Bays: No External 5.25" Drive Bays: 3 Front Ports: Power & reset button with blue LED 2 x USB 2.0 1 x IEEE 1394 (FireWire, i.Link) Audio In and Out Internal 3.5" Drive Bays: 6 Motherboard Compatibility: ATX / m-ATX With Power Supply: No With Side Panel Window: Yes