UNYKAch UK4340, Rack, Server, Silver, Black, ATX, micro ATX, SGCC, Aluminium, 4U UNYKAch UK4340. Form factor: Rack, Type: Server, Product colour: Silver, Black. Supported power supply form factors: ATX. Front fans diameters supported: 120 mm, Rear fans diameters supported: 80 mm. Supported HDD sizes: 2.5,3.5". Width: 430 mm, Depth: 640 mm, Height: 177 mm