Extend the range of any fan inside the enclosure with the extension cable extension provided here The cable extends the signal path by more than 30 cm It is compatible with 4-pin PWM fans so it passes the pulse width modulation signal from the motherboard to the fan In addition you can also plug in normal 3-pin fans which then run unregulated Technical details Length 300 mm Color Black Connections 1x 4-pin PWM fan connector 1x 4-pin PWM fan connector