Odyssey ADFRD04 3 Space Diced Foam Pro Rack Drawer Accessory With Lock Customizable diced foam for storing hard drives, mics and computer interfaces, Dimensions: exterior 21" W x 7" H x 15 1/2"D, interior 15 3/4" W x 6 3/4" H x 15" D, Includes set of keys and rack screws