The Tripp Lite 4-Post Rack-Mount Shelf Kit is designed for wallmount racks, providing a secure and stable mounting solution for servers, networking equipment, and other electronics. The shelf kit includes four posts and is 1U in height, making it compatible with standard rack sizes. With the Tripp Lite brand reputation for quality and reliability, this shelf kit is a dependable choice for organizing and protecting your networking equipment in a professional setting.