The HP 1U Cable Management Arm (part number 651089-001) is a rack‑mount accessory designed to route and secure power and data cables for HP equipment installed in a standard 1‑U space. Engineered to attach to the rear of a rack, the arm provides a dedicated pathway that keeps cables organized, reduces clutter, and promotes optimal airflow within the enclosure. Its compact design fits within the limited vertical clearance of a 1‑U server or networking module, simplifying cable management during installation and maintenance while helping to maintain a tidy and professional rack environment.