Designed specifically for CPU Coolers, PH-F140HP fans with PWM functions is an excellent choice for users demanding for a better cooler fan upgrade. PH-F140HP features 120mm mounting holes and an octagon frame, this helps strengthen the frame structure while maintaining a slim profile creating more space for memory clearance compared to the conventional square 140mm fans. The fans are specifically designed to overcome high static pressure, blade deflection and noise challenges. PH-F140HP"s nine blades with MVB produces powerful yet silent downdraft airflow. With the UFB bearing, composed by MOSS and SSC systems, long lifespan and rotation stability are made possible. Packaged and priced reasonably, PH-F140HP is the right choice for CPU cooler fan upgrade.