iStarUSA D-400-6-RED Material of Front Bezel:Aluminum alloy Material of Handle: 1.2mm SECC Zinc-Coated Steel Material of Main Chassis: 1.2mm SECC Zinc-Coated Steel ( Japan Made ) 4U Rackmount Compact Stylish Rackmount Chassis 6 External 5.2 Motherboard Compatibility: 12 x 9.6 (ATX, microATX) External 5.25 Drive Bays: 6 External 3.5 Drive Bays: 2 Internal 3.5 Drive Bays: 2 Front Ports: USB 2.0 x 2 80mm Fans: 1 Dimensions (H x W x D): 19.00 x 7.00 x 20.80