Lenovo 7XH7A05902 DCG Thinksystem ST550 CMA KIT

Lenovo 7XH7A05902 DCG ThinkSystem ST550 Cable Management Arm Kit

Overview

The Lenovo 7XH7A05902 is a cable management arm (CMA) kit designed for the ThinkSystem ST550 tower server. When a ST550 is rack-converted or deployed in a dense equipment environment, rear-panel cable runs become a liability — cables snag during service pulls, obscure status indicators, and create airflow obstructions. The 7XH7A05902 addresses that directly: it provides a structured arm that routes and retains rear cabling so the server can be extended on rails without disconnecting anything, reducing maintenance time and cable stress on repeated access cycles. At 3.80 lb and 19.50 × 7.50 × 4.50 in, the kit is sized to the ST550 chassis footprint and ships factory-new.

Compatibility

The 7XH7A05902 is designed for the Lenovo ThinkSystem ST550 (7X09, 7X10). It is a DCG (Data Center Group) accessory — verify your ST550 chassis generation before ordering, as CMA geometry is generation-specific and cross-generation fitment is not guaranteed. If your deployment includes rail kits for rack mounting the ST550, confirm the rail kit model supports CMA attachment; not all ST550 rail configurations expose the CMA mounting points. This kit is not compatible with other ThinkSystem tower or rack server families (SR series, ST250, ST650).

Installation Notes

Installation follows the ST550 service documentation. The arm attaches to the rear of the chassis and the rack rail; cable bundle diameter and routing path should be planned before final attachment to avoid over-bending. Manufactured in Mexico (country of origin: MX). UNSPSC commodity code 43211600 (computer server accessories) applies for procurement classification.