Zalman K1 Rev.A, Midi Tower, PC, Black, ATX, micro ATX, Mini-ITX, Plastic, Steel, Gaming Zalman K1 Rev.A. Form factor: Midi Tower, Type: PC, Product color: Black. Power supply location: Bottom. Front fans installed: 1x 120 mm, Front fans diameters supported: 120,140 mm, Rear fans installed: 1x 120 mm. Supported HDD sizes: 2.5,3.5". Width: 8.27" (210 mm), Depth: 18" (458 mm), Height: 17.7" (450 mm)