The Powerline 500 AV Nano Adapter with Built-In Outlet, model TPL-407E, uses existing electrical lines to create a secure high speed network. Two adapters are needed to start a network. Connect one adapter to your router and plug another adapter into an outlet on your electrical system for instant high speed network access. The compact form factor saves space and offers an additional electrical outlet, built into the front of the housing to power computers and other devices. A noise filter maintains optimum connection speeds when devices such as computers, televisions, and gaming consoles create electrical background noise .This adapter automatically connects 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 8 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. LED displays convey device status for easy troubleshooting. Advanced 128-bit AES encryption secures your network. This adapter is ideal for use in buildings that interfere with wireless networking signals.