It is not my creation; I was trying to find this STL model, but it did not exist. So, I found the model number, browsed the catalog, downloaded, and converted the file using imagetostl.com.
You can find the .STEP file on this site: https://www.molex.com/en-us/products/part-detail/470541000.
If you are looking for the male connector, I advise you to look at this website: https://github.com/DrLex0/print3d-fan-header-socket.
This is the connector's name:
Molex 47054-1000Molex KK 254
ImageToStl.com_470541000.stl | 31.1KB |