The DHP-P601AV PowerLine AV2 1000 Gigabit Pass-through Kit comes with two DHP-P600AV PowerLine Adapters. These adapters use your electrical wiring to extend your home network to places where you currently have no Internet access as your wireless signal is not strong enough to reach (such as a garage or basement). Simply plug one adapter into your existing router to turn any power outlet in your home into an Internet connection and then plug the other adapter into the room you want to extend your connection to.