CABSHELF1U10 Shelf for use with Server Racks and Cabinets. This 1U rack shelf lets you add 10 in. of flat storage space to any EIA-310 compliant server rack or cabinet. Ensure your equipment is secureThe durable fixed-rack shelf can hold up to 20 kg (44 lbs.) of equipment and is constructed using SPCC commercial-grade cold-rolled steel.Make the most of your available spaceThe 1U cantilever shelf lets you optimize your working space by giving you the ability to mount equipment to your rack instead of taking up desk or floor space.