Navepoint 3U Audio Video Vented Rack Mount Cantilever Fixed Server Cabinet Shelf 18-Inches Deep Black Dimensions: 5.25"H x 17.5"W x 18"D per shelf 79 pound weight capacity Slotted venting, Front mount design No Lip Color: Black Made of high quality cold-rolled steel with an electro-static powder coating Shelf can support up to 79lbs Front mount with slotted venting Compatible with any 19&#034; enclosure 1 3U AV Cantilever Shelf M6 screws, cage nuts, washers