Compatible with all 19 racks and cabinets to hold various IT, network and other equipment. 1U Server Rack Shelf is with No Lip at the front for saving rack space, and with an reinforcing rib making the shelf stronger. 1.2mm Thick Side Brackets and the stiffener at the front assure strength and Max loading weight capacity is 22 pounds Disassembled Shelf allows you to assemble according to your different usage 1U height, 8" ( 203 mm) deep, including 4 x M6 screws & cage nuts, 4 x M5 screws & nuts;