Supermicro CSE-743T-500B 500W 4U Rackmount Server Chassis (Black) Case Type: 4U Rackmount M/B Type: E-ATX (12 x 13-Inch) Processor Support: Dual/single Intel/AMD processors Drive Bays: 8 x 3.5-Inch Hot-swap SAS/SATA Drive Bays Peripheral Drives: 3x 5.25-Inch Peripheral Drive Bays Front Panel: 2x USB ports Power Supply: 80 Plus Gold Certified 500W AC power supply w/ PFC