The StarTech.com 1U Adjustable Server Rack Mount Shelf provides a versatile, heavy-duty solution for adding storage and support inside standard 19" 4-post server racks and cabinets. Its adjustable mounting depth (19.5–38in) adapts to a wide variety of rack configurations, while SPCC commercial grade cold-rolled steel construction offers durable support for servers, AV equipment, network gear, peripherals, tools and other non-rackmount components. The shelf ships with mounting hardware, rear mounting brackets and an instruction manual to simplify installation. Designed for rackmount environments, the product family is commonly finished in black, is TAA compliant in applicable listings, and is backed by StarTech.com lifetime warranty and free lifetime technical support.