APC NetShelter Cable Manager, for 42U- 750W NetShelter SX, Vertical, 1778H x 97W x 160D mm Vertical cable management for the NetShelter SX series 42U, 45U and 48U and 750mm Wide provides maximum U-space coverage. Designed with toolless mounting on the backplate for accessories and snap hinge cable retainers to easily access and secure cabling. Provided equipment-Installation guide, Mounting hardware, 6 x cable retainers with snap hinges, Top securing bracket