OPTIMISED FOR STATIC PRESSURE: Fan guarantees extremely efficient cooling, even with increased air resistance, therefore, the P14 PWM PST is particularly suitable for use on heatsinks and radiators 200 TO 1700 RPM (0 RPM <5 %) REGULATED VIA PWM PST: Thanks to 4-pin connector, the RPM can be regulated in a broad spectrum via PWM, noise is kept at minimum while maximum cooling performance is given when needed EFFICIENT TECHNOLOGY: The motor is powered by a latest generation PWM IC, achieving higher efficiency and saving energy without compromising performance EXTENDED LIFE SPAN: A 10 °C lower motor temperature roughly doubles the life span of a fan, the new ARCTIC motor has a four times longer service life through its low coil temperature TECHNICAL DATA: Fan speed: 200–1700 rpm (0 rpm <5 %), Airflow: 72.8 cfm | 123.76 m³/h, Noise Level: 0.3 Sone, Static Pressure: 2.4 mmH?O, Pin: 4-pin