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Benutzer102023
1 year ago

Hi, it’s not really left. Looks like the plug that is additionally on the fan connector so you can operate more fans than Daisychain.

The first 2 pins are plus and minus (12V). The missing pin is the speedometer signal, you only need 1x to control, from the first fan inserted, the 4. Pin is the PWM signal to predetermine the speed of the fan.