SUPERMICRO CSE-813MS-300CB Black 1U Rackmount Server Case 300W Motherboard Compatibility: 12 x 10 ATX Power Supply: 300W Hot-Swap Drive Bays: 4 x 3.5 SCSI Expansion Slots: 1x full-height, half-length PCI expansion slot (Riser Card Required) Front Ports: USB / COM 40mm Fans: 3 Dimensions (H x W x D): 19.8 x 17.2 x 1.7 Weight: 31 lbs.