TP-LINK’s TL-WPA4226KIT AV600 Powerline Wi-Fi Kit extends your Internet connection to every room of the house through your home’s existing electrical circuitry. The TL-WPA4220 features a Wi-Fi Clone Button which can automatically extend your router’s wireless signal, making it easy to realize seamless roaming within your home network. What’s more, TL-PA4020P has an integrated power socket, which allows an additional device or power bar to be connected to the adapter as though it were a normal wall socket.