Unlike standard adjustable shelves, the entire VSA shelf telescopes to reach rear rail, providing a range of useable depths from 16 to 44 . Providing the greatest useable depth in its class, the heavy-duty VSA is ideal for even the deepest components. Constructed of hemmed 16-gauge steel and finished in a durable black powder coat, the VSA is fully vented for superior cooling and features many tie points for enhanced cable management. Four-point mounting system provides a 500 lb. weight capacity. Useable width increases to the useable width of the enclosure when the shelf is flipped. Shelf requires less open rackspace to mount than other four-point mount shelves.