Compatible with all 19 racks and cabinets to hold various IT, network and other equipment. This 1U Server Rack Shelf is with no lip at the front for saving rack space, and with an stiffener making the shelf stronger. 1.2mm Thick holding sides assure strength and Max loading weight capacity is 22 pounds, more than other cantilever rack shelves Disassembled structure decreasing damage of ears in transit 1U height, 6" (152mm) deep, including 4 x M6 screws & cage nuts, 4 x M5 screws & nuts;