[Trisquel-users] Re : Do this wifi cards work with free software?

[lcerf]

Or you can opt for a Wifi dongle (i.e., USB-connected) with a supported  
chipset. AR9170, AR9270 or AR9271 for instance. The problem is: it is tough  
to know the chipset of a given model and, worse, a same model may be sold  
with different chipsets along its life (that is probably why, it is not even  
written on the wrapping). The safest solution is to buy from  
http://libre.thinkpenguin.com or http://tehnoetic.com (to the best of my  
knowledge, the only two vendors that guarantee that all their hardware work  
with Linux-libre, Trisquel's kernel). Or you take advice from  
https://trisquel.info/forum/14-fantastic-wifi-adaptor-tp-link-tl-wn722n a  
reasonably recent post (one can hope the chipset has not been changed since  
then). Or you can try the second-hand market (if the vendor indicates the  
chipset).