Monster Cable Digital Life PowerNet 200 (Black)
Ethernet-over-power-line expansion module
Expand your PowerNet home network with an additional PowerNet 200 module. PowerNet home networks create an ethernet-based network using your home's existing electrical lines for data transmission. As long as you have one pre-existing PowerNet 200 module plugged into an outlet and connected to your internet modem via an ethernet cable, you're free to add additional PowerNet 200 units throughout your house to network multiple devices.