3 pin computer fan connector
thingiverse
I crafted custom fan adapters out of necessity, as my motherboard lacked sufficient fan connectors. To circumvent this issue, I fashioned a solution that allows direct connection to the 12V power supply unit's output. I carefully soldered wires to the desired pins and inserted them into an existing connector. Next, I secured the assembly in place using hot glue before adding a protective cover plate on top.
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