Wireless adapter PCI card
Find a reliable PCI wireless adapter that works well with Windows 10. Many options on Amazon lack proper driver support, so check reviews carefully.
If they run on Windows 7 or Windows 8/8.1, you can adapt them for Windows 10. I'm using a PCI sound card that came out in 2009.
When it works with Windows Vista, 7, or 8, it’s likely to work with Windows 10. The main task might be adding drivers via Device Manager manually.