Supermicro 865 Watt 4U Tower/Rackmount Server Chassis, Black (CSE-743TQ-865B-SQ) Case Type: Tower4U Rackmount M/B Type: Upto Size 12 x 13 inch Processor Support: SingleDual Processor Drive Bays: 8x 3.5-Inch SAS/SATA Hot-swap Drive Bays Peripheral Bays: 2x 5.25-Inch Peripheral Drive Bays; 1x 5.25-Inch Bay For Floppy Drive Cooling System: 2x Super Quiet Chassis Fans; 1x Super Quiet Rear Fan Power Supply: 865W AC Power Supply, with PFC