4-pin fan header

thingiverse

I'm using some spare 0.1" fan extension cables for a project and needed a way to connect them to a PCB to guarantee correct orientation. If you've built a PC, you should recognize the 4-pin fan connector because of the tab sticking up on one side. ### Assembly instructions for Fan Header Male: Take four loose square header pins and shove them through the 3D printed part. Be careful not to bend the pins or hurt yourself. This is a very tight fit so it will take some work to get them inserted. I found it was helpful to use needle-nose pliers to hold the pin, and push it through against a hard object (my workbench). Push them through until they are about 1mm longer than the connector's tab. ### Assembly instructions for Fan Header Female: Take four loose square header pins and push them through the 3D printed part. Again, this is a tight fit, so take your time. Push them through until they are about 2mm below flush with the top opening. ### Notes Due to the tapering of the female connector's opening, your male connector's pins should make a good connection once they're clicked together. I printed two copies and my multimeter always registered them as connected. Print in the same orientation as the STL files. These connectors fit my fan extension cables very well, but your mileage may vary.