OPTIMISED FOR STATIC PRESSURE: During the development of the new BioniX P120, special emphasis was placed on a focused airstream and thus a high static pressure PWM SHARING TECHNLOGY (PST): PST ensures that all your fans listen to a single control signal, stop at low load, turn whenever necessary EFFICIENT ENGINE MODERNISATION: Thanks to sinusoidal magnetation, the new engine generates only 5% of the vibrations due to the switching of an ordinary DC motor 200 TO 2100 RPM REGULATED VIA PWM PST: With a wide range of regulation and the PWM Sharing Technology (PST), the BioniX P120 fan speed can be controlled synchronously with all your other fans together TECHNICAL DATA: Fan speed: 200???2100 RPM, Airflow: 67.56 CFM/114.79 m??/h (@ 2100 RPM), Noise Level: 0.45 Sone (@ 2100 RPM), Pin: 4-pin