After connecting the 4Pin PWM fan, the card will automatically adjust the fan speed according to the heat generated.
After connecting the 3Pin fan, the fan will rotate at full speed, because the 3Pin does not have the PWM speed control function.
Note: 1:
1. If the fan connector on the graphics card is a 4Pin connector, then there will be a PWM speed control fan function.
2. If the fan interface on the graphics card is 3Pin interface, then there is no PWM speed control fan function, this cable can not be used on your graphics card, before purchasing, please confirm their own graphics card interface types