NavePoint 1U 19-Inch Universal Vented Rack Mount Cantilever Server Cabinet Shelf 6-Inch 150mm Deep Set of 4 Black Dimensions: 1.75"H x 17.63"W x 5.88"D 44 pound weight capacity Front mount design Slotted venting Lip Made of high quality cold-rolled steel with a powder coating Shelf can support up to 44lbs Front mount with slotted venting Compatible with any 19&#034; enclosure 4 1U Cantilever Shelves M6 screws, cage nuts, washers