Compatible with Microsoft Surface Book 1/2/3, Surface Laptop 1, Surface Laptop 2, Surface Laptop 3, Surface Pro 7 / Pro 6 / Pro 5 2017 / Pro 4 / Pro 3 and Surface Go 1/2, Surface Pro X | Replacement for AYNEFF Surface Book Power Supply quickly recharges the battery and the USB-A port allows you to charge another device such as your phone at the same time | Input: (AC) 100-240V 1.6A, Output: 15V 4A 65W/USB-A Port: (DC)5V 1A 5W | AYNEFF A1706 65W Surface Charger/Power Adapter has passed the rigorous tests of compliance standards. There is no need to worry about damaging the equipment | (Package Contents) AYNEFF A1706 65W Charger, with 5.9ft AC cord, user Manual