Supermicro SuperChassis SC836BE16-R1K28B System Cabinet Motherboard Compatibility: 13.68 x 13, E-ATX and ATX Power Supply: 1280W Redundant Hot-Swap Drive Bays: 16x 3.5 Hot-swap SAS Drive Bays Expansion Slots: 7x full-height full-length expansion slots Front Ports: 2 x USB Ports & DB9 COM Port 80mm Fans: 3x 80mm Hot-swap 4-pin PWM Fans 2x 80mm Rear-exhaust 4-pin PWM Fans Dimensions (H x W x D): 25.5 x 17.2 x 5.2 (D x W x H) Weight: 72lbs