I forget what my WI-FI adapter was other than it fits in a PCI slot and it seemed to work just fine with WPA2 which I think is what I use for security. Not sure when I got the card though. Maybe around 2012-2013 perhaps so maybe that is why it worked so well.
I use a cable modem that's a few years old which I had to buy back when DOCSIS 3.0 came out.