The 644318-001 HP Front Fan Assembly is a dedicated cooling component engineered for the HP Z620 Workstation. Designed to mount in the front of the chassis, this fan operates on a 12‑volt DC supply and draws 0.39 amperes, ensuring efficient power usage while delivering reliable airflow. The assembly is compatible with the Z620’s internal layout, providing a straightforward replacement or upgrade option for maintaining optimal thermal performance. With its precise voltage and current rating, it integrates seamlessly into the workstation’s power and cooling architecture, supporting the system’s stability and longevity.