The ZyXEL PLA4215KIT Powerline adapter kit is a great way to upgrade your existing Powerline network to 500Mbps speed, or set up Powerline networking in your home for the first time. This kit comes with two PLA4215"s, which allow you to turn any outlet in your home into a high speed networking port, perfect for sharing Internet connections or creating a home network. The built-in green feature like power-saving mode efficiently saves energy used to power the network.