COUGAR MX331 Mesh-G, Desktop, PC, Black, ATX, micro ATX, Mini-ITX, 6.1" (15.5 cm), 13.8" (35 cm) COUGAR MX331 Mesh-G. Form factor: Desktop, Type: PC, Product color: Black. Front fans diameters supported: 120 mm, Rear fans installed: 1x 120 mm, Rear fans diameters supported: 120 mm. Supported HDD sizes: 2.5,3.5,5.25". Width: 8.03" (204 mm), Depth: 18.9" (481 mm), Height: 17.4" (443 mm). Package width: 9.25" (235 mm), Package depth: 20.7" (526 mm), Package height: 19.5" (495 mm)