Original Asus S series VivoBook chargers have a variety of power outputs ranging from 33w to 90w with the most common being the 45w and 65w, just simply click on your series listed below, then you will see the models within this series along with a picture of the charger and a full specification, if yours is not listed, then contact us and we will respond with a link for the correct Asus S series ac adapter you need.