HPE P22020-B21 2U Cable Management Arm for DL38X Gen10+ Rail Kit

Overview

The HPE P22020-B21 is a 2U cable management arm (CMA) designed to pair with the DL38X Gen10+ rail kit, keeping server cables organized and strain-free at the rear of the chassis during slide-out maintenance. At 20 inches long and 5.75 inches wide, this arm spans a standard 2U rack footprint and routes power and data cables so the server can be fully extended on its rails without disconnecting or stressing rear connections — a real operational benefit in dense data center rows where frequent access is routine. Ordering the P22020-B21 alongside your rail kit from the start avoids the common retrofit problem where cables are already routed and dressed before a CMA is installed.

Compatibility

Designed specifically for HPE ProLiant DL380 Gen10 Plus and DL385 Gen10 Plus servers (the DL38X Gen10+ family) when installed with the compatible HPE 2U rail kit. This arm is not a universal fit — confirm your specific server model and rail kit part number against HPE's compatibility matrix before ordering. It is not designed for Gen9 or earlier DL38X platforms, nor for 1U configurations. For other rack cable management accessories, verify the rail kit generation match.

Installation Notes

Mounts at the rear of the rack alongside the rail kit — no tools beyond standard rack installation are required for the arm attachment points. The assembled dimensions (20.00 x 5.75 x 3.25 in) require adequate rear clearance between the rack and the wall or adjacent equipment; verify at least 24 inches of rear clearance is available before installation. Ships at 2.85 lb; account for cable load when assessing arm support during extended-rail service operations.