The RackPath cantilever shelf is designed to support your non-rack mountable equipment in your rack such as routers, modems, tower computers, UPS systems and monitors. The vented cantilever tray helps to improve air flow and keeps your equipment from overheating. Constructed from heavy duty cold rolled steel with a durable black electro-static powder coated finish, the shelf has a maximum weight capacity of 55lbs(25kg). All mounting hardware is included.