OPTIMISED FOR STATIC PRESSURE: Fan guarantees extremely efficient cooling, even with increased air resistance, therefore, the P14 PWM PST CO is particularly suitable for use on heatsinks and radiators JAPANESE DUAL BALL BEARING: The premium quality Japanese dual ball bearing allows continuous operation 24/7 without the slightest compromise in performance MORE EFFICIENT TECHNOLOGY: The motor is powered by a Neodym-Iron-Boron-Magnet ring of the newest generation, which allows the new P14 PWM PST CO to run much more efficiently than its predecessors 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, Airflow: 72.8 CFM/123.76 m³/h (@ 1700 RPM), Noise Level: 0.3 Sone (@ 1700 RPM), Pin: 4-pin