Aqua Tuning claims it has a world exclusive with the very first 4-pin PWM to 3-pin converter. Available via the company's website for 9.79EUR, this tiny board allows you to control 3-pin fans like any other 4-pin PWM fan. You connect the board to your motherboard or PWM fan controller and it automatically detects the PWM signal and adjusts the voltage of the 3-pin fan to the corresponding level.
By using a splitter, it's possible to control multiple fans simultaneously, as long as the current doesn't exceed a level of 1A.
Controlling 3-pin fans through a PWM signal was an unsolvable problem – until now. Phobya has tackled this problem and now presents an elegant, simple solution with the 4-pin PWM to 3-pin converter.
With the 4-pin PWM to 3-pin transformer, all 3-pin fans can now be controlled with a normal PWM signal. The converter is connected to your motherboard or PWM fan control, while the fans are connected to the converter. Now your 3-pin fan can be controlled like any other PWM fan.
The converter detects the PWM signal and controls the 3-pin fan with the corresponding voltage. This makes controlling your fan simple. The converter is capable of outputting a voltage (sic) of 1A, which equals 12W. This means you can use a Y-splitter to control several fans simultaneously through the converter.
Dimensions (LxWxH): 50 x 39 x 18mm
In: 4Pin PWM
Power connection: 4Pin plug
Mounting: Double-sided tape for attaching at/in the case