iStarUSA M-140-ITX Black Material of Front: Bezel Plastic Material of Handle: Aluminum Material of Main Chassis: Steel 1U Rackmount 4-Bay Trayless Storage Server Chassis 250W Motherboard Compatibility: Mini-ITX Power Supply: 250W External 3.5 Drive Bays: 4 Expansion Slots: 1 40mm Fans: 2 Internal 2.5 Drive Bays: 1 Dimensions (H x W x D): 1.75 x 19 x 15 (H x W x D)