Have been using an old Netgear (2.4 only.) I'd like to keep it around $20 as it's my kid's computer and am going to build a new gaming pc down the road so don't want to put too much more into this one. Only has usb 2.0, gets some lag online mulitplayer, thinking one with 5ghz might be an improvement. And a cable for the antenna like the one in use now too (unless you don't think that matters, the router is about 30ft away with a couple walls in between.) We put the antenna on top of the monitor so it's up higher, seems to work ok for daily use. The internet speed is around 40mbps download & 5mbps upload.