The fan is a part of the cooling assembly, it’s permanently attached to the heatsink.
Fans are most commonly used for air cooling. A computer fan may be attached to the computer case, remove the waste heat produced by computer components, to keep components within their safe operating temperature limits. It protects your valuable data by keeping your CPU cool. The CPU Cooling Fan features efficient heat dissipation and low noise, perfect design for high compatibility and excellent component. This high quality CPU Cooling Fan is great for keeping the CPU and other components within their operating temperature range!