. The. PH-F140MP. a high static pressure fan can have the ability to overcome the airflow restriction caused by high fin density. PHF140MP produces high static air pressure allowing for a direct & focused airflow making them ideal for the densely packed fins of a radiator. The. PH-F140MP has a larger base size. with a magnetic brushless DC motor to avoid the effects of resonance & for rotational stability. To create better structural strength. Phanteks redesigned. the back frame of the PH-F140MP. Phanteks fans now comes with pre-installed rubber pads to help reduce vibration occurrences. With the noise reduction challenges in mind we modified the component for lower actuator noise. PCBA for lower electromagnetic noise. brushless motor structure for lower operating noise & frame rib for lower wind & vibration noise..