The Powerline 500 AV Nano Adapter Kit, model TPL-406E2K, uses any electrical outlet to create a secure high-speed network. Connect the first adapter to your network & plug the second adapter into any outlet on your electrical system for instant high-speed network access. The compact form factor saves space around crowded electrical outlets. 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.