Inter-Tech AOC-7740. Power supply: 500 W. Front fans diameters supported: 80, 92, 120 mm, Side fans diameters supported: 92 mm, Rear fans diameters supported: 80, 92 mm. Width: 180 mm, Depth: 458 mm, Height: 414 mm. Power supply type: SL-500, Internal drive bays: 5 x 3.5", External drive bays: 3 x 5.25", 1 x 3.5"