Features: 7 drive bays - External 3 x 5.25" - Internal 4 x 3.5" - Included 5.25" to 3.5" adapter for external 3.5" device Two layer, steel with polycarbonate, side and top panels to deaden noise 7 expansion slots Advanced cooling system: - 1 rear (standard) 120mm TriCool™ 3-speed switch control exhaust fan - 1 slot 120mm exhaust blower with 3-speed switch Built-in washable air filter Front mounted I/O ports - 2 x USB 2.0 - 1 x eSATA - Audio In and Out (AC'97 and HDA compatible) 0.8mm cold rolled steel for durability Compatible Motherboards: Mini-ITX, microATX, StandardATX No power supply included Dimensions: 18.9" x 8.1" x 17.3" 48.1cm x 20.5cm x 44cm