Bullet_point: ['200 TO 1800 RPM REGULATED VIA PWM: Thanks to 4-pin connector, the RPM can be regulated in a broad spectrum via PWM, noise is kept at a minimum while maximum cooling performance is given when needed', '200 to 1800 RPM (0 RPM <5%): Thanks to the 4-pin connector, the fan speed can be controlled via PWM. This reduces noise to a minimum while guaranteeing the highest cooling 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', 'Efficient technology: the motor is controlled by a PWM IC of the latest generation and thus achieves a higher efficiency. This saves energy without compromising performance', 'MORE EFFICIENT TECHNOLOGY: The motor is powered by a Neodym-Iron-Boron-Magnet ring of the newest generation, which allows the new P12 PWM to run much more efficiently than its predecessors', 'OPTIMISED FOR STATIC PRESSURE: During the development of the new P12 PWM, special emphasis was placed on a focused airstream and thus a high static pressure', 'Optimised for static pressure: Due to the high static pressure, the fan guarantees efficient cooling even with increased air resistance. Suitable for use on heat sinks & radiators', 'SPECIFICATIONS: Fan speed: 200-1800 rpm (0 rpm <5%), Airflow: 56.3 cfm (Page 1)