I am looking for an easy to acquire wifi adapter for Qubes ideally open source. Intend to use on PC. Thanks
you could check out the Alfa Network adapters. Coming with Atheros cards.
as an example.
Works out of the box
If you don’t want to spend a fortune then a TL-WN722N does work (at least with my laptop + Q 4.0 & 4.1) and a used one can usually be found for around 5 bucks.
BTW the WN725N is the nano-sized version of this and uses the same
driver. Works fine for me, but for heavy upload/send traffic you need to
be close to your router/ap unit or else you’ll experience a high error
rate resulting in spurious disconnection. This is caused by the
nano-sized device having only a tiny antenna.