RackSolutions 18" 2U Cantilever Vented Shelf is a 2 post-fixed shelf designed for a wide range of non-rackable equipment, you can mount your monitors, network switches, or small form factor PCs. The 18" depth is great for mounting AV and networking accessories that have greater depth as well, and with a 60 lb weight capacity this shelf can even support larger components. The shelf is vented to reduce the risk overheating and is black powder-coated. All mounting hardware is included.