I bought this thinking it would boost my signal to my fire stick which already a good signal (118 mbps). I was thinking of using a VPN and wanted the best signal I could get. I actually got a better signal using wifi before I hooked this up and used an ethernet line from my router. The best speed I could get using this device with ethernet was 88 mbps. I tried it using a 30ft eithernet connection and then a short 4ft connection with about the same results. I would say the only reason to buy this would be if you had really poor wifi or none at all and needed a ethernet connection to your fire stick. Don't expect it to be better than wifi.