Chieftec CH-09B-B-OP. Material: Metal. Width: 205 mm, Depth: 540 mm, Height: 480 mm. Compliance industry standards: PSII. Ventilation fan(s): 2 x 120mm, 2 x 92mm, Internal drive bays: 5 x 3,5", External drive bays: 4 x 5,25" / 1 x 3,5"