what is the name of the of the plug that you can use to get internet through

[jessa]

the wiring of your house? i remember seeing something about a plug where you plug one into an outlet where the modem is and connect the modem to the plug through an ethernet cable, and then in another room you connect a computer or something to another plug through an ethernet cable, and you have internet. i forgot to save the link so can somebody tell me the name of this thing

[ioerr]

I think the ones you want are are called wall plugged ethernet bridges, or powerline network bridges, or powerline ethernet adapters.

http://www.newegg.com/Store/SubCategory.aspx?SubCategory=294&Category=281&name =Powerline-Networking

They also have "power over ethernet" devices, but that's not the same thing.