The HP A3639-04018 160mm Front Fan Module is a dedicated cooling component designed for HP N4000 server models. This front‑mounted fan module measures 160 millimeters in diameter, providing efficient airflow to help maintain optimal operating temperatures within the server chassis. Compatible with the HP N4000 series, it supports the standard front fan interface and is engineered to integrate seamlessly with existing server configurations. The module is manufactured by HP and carries the part number A3639-04018, ensuring reliable performance and compatibility for enterprise server environments.