Vented for additional cooling of large components. Fits all components up to 17-3/8 inches wide to quickly meet all of your rackmounting needs. Made from 16-gauge steel, Includes 3 rear bracket to prevent components from sliding backwards. Cable lacing slots at rear.Racking Height: 7 inches (4 space). Useable Shelf Area: 17.44W x 15 15/162D inches. Capacity: 85 lbs.