Genuine Acer Aspire 3 A315-51 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 A315-51 ac adapter, Acer continuously add model numbers, so if yours is not listed, then simply check the Acer Aspire 3 A315-51 charger 19v 2.37a 45w 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.