Our story of PWM does not end here. The same can be done with our EK-Cable PWM Fan Adapter for GPU.

With this adapter cable, you can directly attach any regular 4-pin PWM fan to the GPU 4-pin header or a chain of fans. If you have a computer that is performing GPU intensive tasks, or you have a separate loop to cool your GPU or multi-GPU setup, you can use the PWM signal from the graphics card(s) to control the speed of the fans.

Cryptocurrency miners are well aware of this little adapter cable since there were some GPUs that refused to mine if the card had no feedback from the spinning fans. Since every liquid cooled GPU has no fans running on it, this was a problem.