Xigmatek Asgard-III Wind. Material: Steel. Width: 185 mm, Depth: 475 mm, Height: 408 mm. Internal drive bays: 5 x 3.5", External drive bays: 2 x 3.5", 3 x 5.25", Main board size: 243.8 x 243.8, 304.8 x 243.8 mm (9.6 x 9.6, 12 x 9.6 ")