Optimised for Static Pressure During the development of the new Arctic P12 PWM, special emphasis was placed on a focused airstream and thus a high static pressure. The fan assures extremely efficient cooling, even with increased air resistance. Therefore, the P12 PWM is particularly suitable for use on heatsinks and radiators. P12-pwm-arctic-fans 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. High-Quality-Bearing-arctic-fans High Quality Bearing Thanks to an alloy/lubricant combination developed in Germany, friction within the bearing is reduced and greater efficiency is achieved. As a result, there is less heat development as well as less bearing noise, which means you can enjoy a longer service life from your fan. PWM-arctic-4-pin-connector 200 to 1800 RPM regulated via PWM Thanks to the Arctic P12 PWM 4-pin connector, the RPM can be regulated in a broad spectrum via PWM. In this way, noise is kept at a minimum while maximum cooling performance is assured when needed.