Can I use a Noctua fan with only + and GND connected?

All Noctua fans can also be connected with only 2 wires by connecting + and GND.
The fan will then run at full speed.

Make sure to pay attention to the pin configuration of our fans.

Please note that modifications to our fans such as cutting the cables of a fan can void the fan’s warranty. This also includes out-of-specification use, such as reverse voltage. Further information on this is available in our warranty terms and conditions.