TP-LINK’s TL-PA411KIT uses your home's existing electrical wires to create or expand your home network. With no additional wiring required, you can simply plug the TL-PA411KIT into existing power sockets and instantly establish a networking infrastructure. With high-speed transfer rates of up to 500Mbps, TL-PA411KIT transmits multiple HD streams and even 3D movies to every room, making it a great choice for an easy-to-build multimedia entertainment network

By simply pushing the Pair button on your TL-PA411KIT adapters, you can set up a hassle-free Powerline network within minutes that’s complete with 128-bit AES encryption for network security and data protection.It's that simple!1. Plug the adapter into a power outlet.2. Connect the device via a network cable to the adapter.3. Press the encryption buttons—and you're done!

With Quality of Service (QoS), you can determine how much bandwidth is allocated to each application.  This can guarantee that each application will have some bandwidth, meaning that no single application can take down an entire Internet connection. All you have to do is choose which type of traffic you use – Internet surfing, online gaming, video streaming etc. -- and the QoS will guarantee clear, instant reproduction of that application even when with other applications are running on the network at the same time.