SUPERMICRO CSE-813MTQ-600CB Black 1U Rackmount Server Chassis 600W Motherboard Compatibility: 12 x 10 ATX Power Supply: 600W Hot-Swap Drive Bays: 4 Expansion Slots: 1 x full-height, half-length PCI expansion slot (Riser Card Required) Front Ports: 2 x Front USB Ports 1 x Serial COM Port 40mm Fans: 4 Dimensions (H x W x D): 19.8 x 17.2 x 1.7