6 Inch Seven Blade AC17251 AC Axial Fan https://www.mx-fan.com/product/172x150mm-ac-axial-fan/172-150-51mm-6-inch-Seven-Blade-ac17251-ac-axial-fan.html The 172×150×51mm 6 Inch Ball Bearing AC17251 AC Axial Fan is an advanced cooling fan designed to provide airflow and exceptional heat dissipation in various applications. It is commonly used in computer cases, industrial equipment, and demanding ventilation systems.