The D-Link DHP-W311AV kit is a set of 2 compact powerline adapters that use the home power grid to build a computer network. Plug the powerline adapters into the wall socket and easily share an internet connection with other floors, or simply with the other side of the room. With the DHP-W310AV your internet connection is via the power outlet and you get a speed of 500 Mbps via the electricity grid.
Note: it is necessary to connect the powerline adapters to the same power phase in the house. If you do not do this, the powerline adapter does not work or only partially.