TRENDnet’s Powerline 1200 AV2 Adapter with Built-in Outlet, model TPL-421E, creates an extreme performance Powerline 1200 network using an existing electrical system. Two adapters are needed to start a network. No CD installation required—encrypted TRENDnet adapters auto-connect out of the box. Plug in the first adapter and network it to your existing router. Plug in other adapters on the same electrical system and they auto-connect to the first adapter for immediate internet access. Never lose an electrical outlet with the built-in socket. Plug In Install Simply plug in TRENDnet adapters! The encrypted Powerline signal auto-connects over an existing electrical system. For Busy Homes Powerline 1200 technology and a Gigabit port deliver incredibly fast and stable networking to seamlessly connect devices and stream 4K video. Built-In Outlet With so many devices needing power, you don’t lose an outlet when plugged in. Plug the adapter into an outlet, then plug a power strip into the adapter.