The 720865-B21 HP 2U Cable Management Arm is a purpose‑engineered accessory designed to streamline cable routing for HP equipment installed in a 2‑U rack configuration. By securely holding power and data cables away from the front and rear of the server, the arm helps maintain an organized workspace, improves airflow, and reduces the risk of accidental disconnections. Its mounting system aligns with standard HP rack mounting points, allowing straightforward installation without the need for additional tools. This cable management solution supports a clean, professional appearance in data centers or server closets while facilitating easier maintenance and troubleshooting.