2U Standard Chassis 6 x 3.5\" HDD + 2x 5.25\" Bays Features: - 2U rackmount design,meets EIARS-310C standard. - 2 x 5.25\" drive bays, 6 x 3.5 \" drive bays - Support CEB(12\" x 10.5\"), ATX (12\" x 9.6\"), Micro ATX (9.6\" x 9.6\"), Mini-ITX (6.7\" x 6.7\")motherboard - 4x 80mm ball bearing fans wall for better ventilation - 7 x low profile PCI expansion slots. (Also available with 3 x full height PCI slots)? - Front USB ports - Can be fitted with 3 x 3.5\" Hot Swap bays if using SC-H300 fitted in the 2 x 5.25\" Bays? Specifications: - Drive Bay: Supports six 3.5\" drives and two 5.25\"drives - Cooling Fan: 4 x 80mm middle fans - Switch: Power ON/OFF x 1, System reset x 1 - Indicator:Power ON/OFF x 1, HDD x 1, NETWORK X 2 - Connector:Two front accessible USB ports - PCI Expansion: 7 x low profile PCI expansion slots. (Also available with 3 x full height PCI slots)? - Motherboard Compatibility: Support CEB(12\"x10.5\"), ATX (12\"x9.6\"), Micro ATX (9.6\" x 9.6\"), Mini-ITX (6.7\" x 6.7\") - Power Supply Options: Standard ATX, standard 2U power supply, - Dimensions ( W x D x H ): 19\" x 21.6\" x 3.5\" (483mm x 550mm x 88mm) - Packing:Double boxes - Weight: 8.4 kg/18.5 lb (NET) 10.8 kg/23.8 lb (GROSS) - Environment Temperature:0/55 C, 32/131 F (Operating) -20/60 C, -4/140 F (Non-Operating) - Relative Humidity: 5% to 95%,non-condensing - Vibration ( 5-500 Hz ):1 Grms (Operating), 2 G (Non-Operating) - Shock : 10 G(with 11ms duration, half sine wave) (Operating), 30 G (Non-Operating)