The simplest, but also the most dangerous approach is to use fan controls without a monitoring function. None of these test candidates fared well in the test - without a display and without heat sensors, these products are only of limited use. You can't tell how fast, or rather, how slow, a fan is rotating when using one of the following fan controllers.
Cooler Master Aerogate I: For Control Of A Maximum 4 Fans
The Aerogate I from Cooler Master is only suited for regulating up to four fans. Four small dial controls are located on the front for this purpose. The voltage output is between 7 and 12 volts. Aerogate I does not have a display, nor does it monitor the connected fans and their temperatures.
Small 5.25" module: fits with ease into any PC case.
