FOR 1pcs 644319-001 Z620 Workstation Front Chassis Cooling Fan — Replacement for Graphics Card / CPU Cooler / Heat Sink

Replacement front chassis cooling fan for Z620 Workstation, part number 644319-001. Sold as FOR 1pcs, this fan is designed for front-panel airflow in the Z620 and can also serve as a graphics card fan, CPU cooler fan, or heat sink fan. OEM-compatible unit to restore cooling performance and reduce system temperatures; straightforward to install into the Z620 front housing. Ideal single-piece replacement for overheating or failed fans (FOR 1pcs).