iStarUSA D-313ASE-70P8B Black Aluminum 3U Rackmount 3U Compact Aluminum Rackmount microATX Chassis with TC-700PD8B Power Supply Motherboard Compatibility: 9.6 x 9.6 (microATX) Internal 3.5 Drive Bays: 4 Expansion Slots: 4 Front Ports: 2 x USB 2.0 Dimensions (H x W x D): 5.25 x 19.00 x 17.55