The ICC 3U Cantilever Rack Shelf is a heavy-duty ventilated tray designed for equipment storage in standard 19" server racks and network cabinets. Built from one-piece steel with a black powder-coated finish, it supports up to 50 lbs for reliable performance. The ventilated surface improves airflow to keep devices cool, and the 15" deep tray provides additional storage space for larger equipment. Installation is straightforward with included #12-24 mounting screws, making it an excellent choice for professional rack organization.