4U Server Case w/ 24x 3.5" Hot-Swappable SATA/SAS Drive Bays, MiniSASFeatures:- 4U rackmount design- 24x hot-swappable SATA (II or III) / SAS 6G drive bays.- Six internal SFF-8087 Mini SAS connectors support up to twenty-four 3.5" or 2.5" SATA (II or III) or SAS 6G hard drives;- Hot-swappable HDD tray with special designed power-off and lock mechanism.- 2 x 46CFM 80mm Ball-bearing cooling fans for exhaust- 3 x 120mm ball-bearing fans in the middle fan wall- 2 x USB 2.0 in Front Face.- 7 x PCI Expansion Slots- RoHS Compliant- Support EEB (12"x13"), CEB(12"x10.5"), ATX (12"x9.6"), Micro ATX (9.6" x 9.6"), ITX (6.7" x 6.7") motherboard- Screwless top cover- Smooth border to prevent lacerating your skinSpecifications:- Drive Bay: 24 x hot-swappable SATA (II or III) / SAS 6G drive bays. Six internal SFF-8087 Mini SAS connectors- Cooling Fan:3 x 120mm ball-bearing middle fans in Centre wall plus 2 x 46CFM High Airflow Low Noise 80mm rear exhaust 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 port, six internal SFF-8087 Mini SAS connectors, twelve 4-pin molex redundant power connectors- Motherboard Compatibility: Support EEB (12"x13"), CEB (12"x10.5"), ATX (12"x9.6"), Micro ATX (9.6" x 9.6"), ITX (6.7" x 6.7")- PCI Expansion: 7 x PCI full height Expansion Slots- Power Supply Options: Standard ATX PS2 power supply or mini redundant ATX power supply or 3U redundant power supply- Dimensions ( W x D x H ): 483mm x 690mm x 176mm- Packing:Cardboard box with pre-formed internal polystyrene formers- Weight (without hard drive): 18 kg/39.7 lb (NET) 21.2 kg/46.7 lb (GROSS)- Environment Temperature:0/40 °C, 32/104 °F (Operating) -20/60 °C, -4/140 °F (Non-Operating)- Relative Humidity: 5% to 95%,non-condensing