Product Specification:Output Max: 19V 7.1A 135W / Input Volt Range: 100-240V 50-60Hz with intelligent safety protection.Connector size:5.5mmx1.7mm (Not fit for 3.0mm*1.1mm and USB-C/Type C!) Please check your model and buy it with confidence 135W Laptop Charger for Acer Nitro series: Fit for Acer Nitro series gaming laptop AN515-56, AN515-45, AN515-55, AN515-57, AN517-41, AN517-52, AN517-53, AN517-54, AN715-52, AN515-57-584Y, AN515-55-53AG, AN515-44-R99Q, AN515-55-52KW; Acer-ADP-135NB-B, Acer-ADP-135KB-T, PA-1131-16, PA-1131-05 Multiple Protection: Our chargers are carefully designed and rigorously tested, integrating multiple protection functions such as over-current, over-temperature, over-voltage, short-circuit, etc., so that you can enjoy a convenient charging experience without any hidden dangers Warranty: We offer 12-month unconditional replacement service, and the reason for this is to make your shopping experience more enjoyable. If you have any questions, let us