Compatible with all 19 racks and cabinets to hold various IT, network and other equipment. Disassembled Shelf allows you to assemble according to your different usage, and Lip can be upside / downside for meeting different functions. 1.5mm Thick holding sides assure strength and Max loading weight capacity is 44 pounds, more than other cantilever rack shelves Disassembled structure decreasing damage of ears in transit 1U height, 10" (254mm) deep, including 4 x M6 screws & cage nuts, 4 x M5 screws & nuts