The PH-F140HP II, 140mm high static pressure premium fans from Phanteks is designed with the Maelström concept technology. The fans have PWM built-in, creating less cables which allows users to make speed adjustments from 500-1600RPM. The PH-F140HP II, a high static pressure fan, can have the ability to overcome the airflow restriction caused by high fin density. PH-F140HP II produces high static air pressure allowing for a direct and focusing airflow making them ideal for the densely packed fins of a heat sink. With the addition of the UFB Bearing, a longer lifespan and stability is possible.