SUPERMICRO CSE-823T-R500RCB Black 2U Rackmount Server Case 500W Redundant 1 External 5.25 Drive Bays Motherboard Compatibility: 12 x 13 E-ATX Power Supply: 500W Redundant External 5.25 Drive Bays: 1 Hot-Swap Drive Bays: 6 x 3.5 SAS / SATA Expansion Slots: 3x full-height/length expansion slots External Slim Drive Bays: Slim CD-ROM drive 80mm Fans: 4 Dimensions (H x W x D): 25.6 x 16.8 x 3.5