Tecmojo cantilever rack trays are designed for supporting non-rack mountable equipment such as routers, modems, monitors or tower computers. They are designed to fit into EIA-ECA 310E compliant 19" rack and take up 1U (1RU) of rack space. The cantilever tray is made of SPCC cold rolled steel for durability and has maximum weight capacity of 44lbs/22kg. making it the perfect rack shelf solution for storage equipment on your rack. The vented shelf pattern on the cantilever rack shelf provide consistent airflow to help your equipment cool and works more efficiently in your home, studio, office or other locations. Comes assembled and with necessary mounting hardware. Available in a variety of sizes.