Genuine Acer Aspire A517-51G chargers are listed below for laptops and notebooks within this range, please check your model of laptop or notebook and then look down the list and select your Acer A517-51G ac adapter, Acer continuously add model numbers, so if yours is not listed, then simply check the Acer Aspire 5 A517-51G charger 19v 3.42a located at the top as this tends to fit every model within this series. However if you are unsure contact us and we will be happy to assist you.