TRENDnet?s 200Mbps Powerline AV Adapter with Bonus Outlet, model TPL-307E, uses any electrical outlet to create a secure HD building-wide network. Two adapters are needed to start your network--connect one adapter to your network and plug another adapter into any electrical outlet on your electrical system for instant high speed network access. Never lose an electrical outlet with the built in outlet on the front of the adapter. The compact housing does not block adjacent electrical outlets. A noise filter maintains optimum connection speeds when household devices create electrical background noise. This adapter will automatically connect to other TRENDnet Powerline AV adapters with no installation required--TRENDnet recommends pressing the ?Sync? button to automatically change default encryption keys. Use up to 6 adapters to network devices in different rooms without running new cabling. Power Save mode reduces power consumption by up to 80%. Quality of Service technology prioritizes video, audio, and online gaming. Advanced AES encryption secures your network. This adapter is ideal for use in buildings that interfere with wireless networking signals.