This rack accessory from Gator Cases is a 10" deep drawer with cold-rolled, 16-guage steel construction. It"s a fully enclosed drawer with spring-loaded latches; heavy-duty, smooth-gliding drawers; a black powder-coated finish; and a perforated "knock-out" hole for adding a lock if you wish. The 10" depth of the rack drawer is for use in shallow racks. Choose from a 2U, 3U, or 4U size.2U Rack Drawer Dimensions: Interior: 3-1/2" H x 19" W x 10" D Exterior: 4" H x 20" W x 10-1/4" D 3U Rack Drawer Dimensions: Interior: 5-1/4" H x 19" W x 10" D Exterior: 5-3/4" H x 20" W x 10-1/4" D 4U Rack Drawer Dimensions: Interior: 7" H x 19" W x 10" D Exterior: 7-1/2" H x 20" W x 10-1/4" D