The AC Infinity Vented Cantilever Rack Shelf is designed for supporting non-rack mountable equipment such as routers, models, keyboards, and monitors. Fits into all standard 19 inch racks and cabinets, and takes 2U or 2RU of space. Vent design maximizes airflow and prevents hot spots, while maintaining structural integrity. Constructed of heavy-duty 2.4 mm thick cold rolled steel with a black powder coated finish. With a dual flange design, the shelf has a weight capacity of 100 lbs. Internal usable width is 43.7 cm, usable depth is 40.0 cm, usable height is 8.1 cm, with a 7 mm downward lip. Includes four pieces of 10-32 screws, four plastic washers, and four cage nuts.