The Siemon HCM-4-2U Horizontal Wire Manager is a set of 5 mount hardware designed for wall-mounted rack units. With a 4U rack unit height and a rack depth of 450mm, this wire manager is specifically designed for enterprise networking and server setups. The durable construction with a weight capacity of 250 lb ensures stability and security for organizing and managing cables and wires within the rack unit. With a compact size of 19 inches in width and 7 inches in height, this product is ideal for efficiently organizing and routing cables in a network setup.