7 Expansion Slots / Superior Silent Environment / Thermal Solution / Tool-Free User-Friendly Design / Cable Management / Chassis Steel Material Tool-free design for opening side panel conveniently Separate hard drive modules make it easy to organize cable direction Cable management system for better cable routing and neatness Compatible with ATX and Extend ATX Motherboards 5x Exposed 5.25 Drive Bays 6x Hidden 3.5 Drive Bay (1 Exposed converted from one 5.25 drive bay) I/O Panel includes 4x USB 2.0, 1x IEEE 1394 Firewire, 1x Audio, 1x SPK and 1x eSATA Bottom intake fan 1x 120 mm x 1, 1200 rpm, 22 dBA Cooling System Dimension - 266x598x628mm Weight - 16.9 kg