SUPERMICRO CSE-216E2-R900LPB Black 2U Rackmount Server Case 900W Redundant w/ PFC Motherboard Compatibility: 13 x 13.68, E-ATX and ATX Power Supply: 900W Redundant w/ PFC Hot-Swap Drive Bays: 24 x 2.5 SAS/SATA Expansion Slots: 7 x low-profile expansion slots 80mm Fans: 3 Dimensions (H x W x D): 24.8 x 17.2 x 3.5