NA-FC1 Fan Controller, fan control

The Noctua NA-FC1 Fan Controller is a compact, highly flexible controller for 4-pin PWM fans, suitable for both manual speed reduction and cooperation with the motherboard’s automatic fan control. By adjusting the NA-FC1 speed control dial, the user can either manually select a PWM duty cycle from 0 to 100% or the automatic fan control specified by the motherboard. The brightness of the orange status LED provides visual feedback of the settings. The no-sop mode prevents the fan speed from falling below 300 rpm. Thanks to the 3-way split cable and power supply adapter, up to three fans can be controlled simultaneously.