Disclaimer: This article is for educational purposes regarding macOS troubleshooting and configuration. Modifying system files and kernel extensions carries inherent risks. Always back up your data before proceeding.
Download: Once you've found a suitable source, download the USBPorts.kext file. Ensure you select the version compatible with your macOS version and hardware. usbports.kext download
Remember: In the world of kernel extensions, custom-built is secure; generic download is dangerous. Remove Unused Ports : YouTube "Tutorials" with Mediafire
Watch as the ports light up in the list. Delete the ports that didn't stay green (the ones you aren't using). and soldered components
USBPorts.kext No longer working so USB ports work at random #162
Hackintool (macOS): This is the most popular visual method. You use USBInjectAll.kext and the XhciPortLimit quirk to see all ports, then use Hackintool to delete unused ones and "Export" your custom USBPorts.kext.
YouTube "Tutorials" with Mediafire links: Many video descriptions contain a link to "My personal usbports.kext." Unless the YouTuber has your exact motherboard model, BIOS version, and soldered components, that file is useless to you.