Genuine asus VivoBook S330 chargers are listed below, simply select your model of laptop or notebook from the ones listed below and this will show you a picture of the ac adapter and full specification, if you are unsure of your model number then simply match the specification of the charger, some come in different designs also and when more than 1 type of power adapter is available there will be a link on the page at the bottom to a different style and remember the amp power can be higher but never lower.