Designed for seamless integration with both the CAB-42U and CAB-42U1M server cabinets, Linkbasic’s CAB-MR42 is a 42U (1.866m) steel mounting rail. This heavy-duty rail provides the structural support needed to secure shelves, network switches, and other rack-mountable equipment. For versatile installation, the rail features ascending U-height markings stamped from both the top and bottom, allowing it to be used on either the left or right side of the cabinet while maintaining perfectly aligned, readable labels.