Integrated power socket to allow additional devices access to power Mains Filter for better powerline communication performance Home Plug AV standard compliant for high-speed data transfer rates of up to 200 Mbps Plug & Play no new wires or configuration required Patented Power-Saving Mode automatically reduces power consumption by up to 75 TP-LINKs powerline adapter TL-PA251 takes advantage of your homes existing electric wires to transfer data while transferring power. That means with no additional wiring required users can simply plug the TL-PA251 into existing power sockets & establish networking infrastructure in a flash. With an additional integrated power socket it solves a common powerline problem where power sockets would be blocked & thus unusable for other devices. Adopting a totally new product design the TL-PA251 enables high data transfer rates of up to 200 Mbps over a homes electrical circuit for up to 300 meters with an Auto Power-Saving Mode that reduces energy consumption by up to 75.