iStarUSA 1U Compact Server/Desktop mini-ITX Chassis (D-118V2-ITX-DT) Case Type: 1U Rack mount M/B Type:Mini-ITX; 6.7 x 6.7 inch Internal: 2x 2.5" Expansion Slots:1 Cooling System: 3x 40mm Fans (optional) Front I/O Panel: 2x USB 2.0 Ports