Connect a Mini DisplayPort display at resolutions up to 3840x2160p @60Hz to mirror your laptop's display or to expand your system's desktop area. The USB-C charging port allows you to connect your original USB-C charger, so you can charge your laptop's battery rather than draining It, while using this adapter Up to 60W (20V/3a). small and portable, you can slip the adapter into your laptop case and have it ready for use wherever and whenever the need arises. This adapter is a true plug & Play device, with no need for drivers or software installations of any kind. Just plug the reversible USB-C connector into your computer's video output and connect to your DisplayPort display using a DisplayPort cable (not included).