Pwm Fans

PWM-Function
PWM stands for Pulse Width Modulation. The 4-Pin connector allows the mainboard to control the fan RPM. The operating voltage remains a constant 12V, with speed controlled by the PWM-signal, which delivers a value between 0-100%. In the event that the PWM signal is 0%, the SilentWingsPWM will continue rotating at the minimum RPM.
4-Pin connector
Unlike conventional fans that come with a 3-Pin connector, PWM fans are controlled via a 4-Pin connector. Three of the pins function identically to standard fans. The fourth, external pin delivers the PWM signal to the fan.
Compatibility with 3-Pin connector
The 4-Pin connector on the SilentWingsPWM is designed to fit properly into the conventional 3-Pin connectors for standard fans. RPM is then varied based on the supply voltage, from 0-12V.
PWM-Controller
The PWM controller is a motor speed controller that applies the incoming PWM signal onto the motor.
Other features
Extreme airflow range for ultimate cooling and control.
2 Ball Bearing designed for high speed high performance
Better cooling and silent system performance thru PWM fan speed control
15 aerodynamic design fan blades fo better airflow and stability
Unique and stylish "Fishbone" fan blades
This fan can also be directly connected to astandard mini 3 pin connector on
the motherboard or fan controllers
*The black 15 translucent blades No LED
Accessories:
* mini 4 pin connector
* 3 to 4 pin Moiex adapter
* 4 screws