Housed in 5 minutes at home: simple, intuitive, more cable lying around or capricious wifi, this is happiness. No lost and as a bonus it seems to work even if the power strip is off tap (only diodes will then light up), but I do not understand all the better after all if I surf with the laptop battery.
There are faster kits but it is cheap and sprayed my wifi so frankly no need to ruin me for better (well I do not transfer 4 TB of data every day, maybe in this if he would show the limits ...).