The PowerLine AV 500 Passthrough Mini Adapter Starter Kit uses your home's existing electrical wiring to extend your Internet connection. It turns every power outlet into a high speed network connection. Compliant with the HomePlug AV standard, it provides network access to your computers, game consoles, televisions, & any other Internet enabled devices throughout your home. The built-in Passthrough design enables you to continue using your electrical socket by plugging another device into the integrated electrical outlet. The Passthrough socket features noise filtering which helps prevent the electrical device plugged into the socket from affecting your PowerLine connection and performance