The CCR56TZPL is a zinc-plated rack mounting rail used for structuring electronic equipment cabinets. It features an overall height of 56.00 inches (1422 mm) and is designed with a depth of 28.00 inches (711 mm). The rail provides an EIA standard spacing height of 55.50 inches (1410 mm) and has stamped, numbered 'U' markings on the front face for simplified equipment installation. These rails are sold in pairs and are ideal for building or customizing equipment racks.