Drive Bay: Supports up to nine 3.5" drives and three 5.25" drives Cooling Fan:120mm front fan x 1, 60mm rear fan x 2Switch: Power ON/OFF x 1, System reset x 1 Indicator:Power ON/OFF x 1, HDD x 1, NETWORK X 2Connector:Two front USB portsMotherboard Compatibility: Support CEB(12"x10.5"), ATX (12"x9.6"), Micro-ATX (9.6" X 9.6"), Mini-ITX (6.7" X 6.7") motherboardPower Supply Options: Standard ATX power supply Dimensions ( W x D x H ): 16.9" x 18.9" x 5.1" (430mm x 480mm x 130.1mm)Weight: 12.3 kg/27 lb (NET) 16.8 kg/37 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)