Aopen H450B. Material: Metal. Power supply: 400 W. Width: 200 mm, Depth: 430 mm, Height: 355 mm. Certification: UL/CSA/CE/VDE/S/D/N/ FI/FCC /DoC. Ventilation fan(s): 12cm x 1, Internal drive bays: 3.5" x 1, External drive bays: 3.5" x 2, 5.25" x 2