Just lookup cheap devices that you can purchase in your area and check here to see if it’s supported.

I haven’t noticed any problems with it and 5ghz seems to be preferred. I have basic asus/tp-link routers that it works with so it seems to be pretty common.

I’m using 3 cheap routers that I bought used. They are all running openwrt and I have set up Dawn so that devices automatically switch to the best one. Wireless speed isn’t as important to me as coverage and this allowed me to cover my entire house and allow access to high speed ethernet from multiple different locations.

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