Input:100-240V.Output:15V-4A 65W.Please note: maximum power is 65W.Not suitable for chargers above 65W. Additional 5V 1A USB port, which allows you to charge your phone and other devices simultaneously.It works with Microsoft 15V-2.58A 44W and 12V-2.58A 36W Compatible with Microsoft Surface Pro 9 Surface Pro 8 Surface Pro 7+ Surface Pro 7 Surface Pro 6 Surface Pro 5 Surface Pro 4 Surface Pro 3 Surface Pro X Surface Laptop 5 Surface Laptop 4 Surface Laptop 3 Surface Laptop 2 Surface Laptop,Surface Go 1 2 3,Surface Pro 2017 Laptop AC Adapter Power Supply Cord Compatible with model 1706 1800 1631 1724 1866 1868 1876 1824 1873 1983 1943 1950 1958 1963 1625 1796 1769 1735 and so on.higher charging performance than 44W, 39W, 36W, 24W laptop / tablet charger Dependable Protection and Safety:Light and Thin, Fast and Efficient charging, Great for the travel, home or office, Internal smart circuit keeps you and your device safe with multiple protections, including over current protection, over voltage protection, short circuit protection, over heating protection, overload protection, surge protection and under voltage protection If you have any problems after receiving the product, please ask us in a timely manner.Thank you for choosing this item Compatible with:Microsoft Surface Pro 9, 8, 7+, 7, 6, 5, 4, 3, X Windows Surface Laptop 5, 4, 3, 2, 1, Surface Laptop Studio Surface Book 3, 2, 1, Surface Go 3, 2, 1 Compatible with Model: 1706, 1866, 1868, 1824, 1796, 1769, 1724, 1625, 1631, 1735, 1736, 1943, 1867, 1800, 1901,1876, 1705 etc. Compatible with microsoft charger model 1706 Compatible with microsoft model 1706 charger 65w Compatible with microsoft model 1943 charger Compatible with surface pro 1796 charger 1706 charger Compatible with model 1706 surface charger Compatible with microsoft model 1706 charger Compatible with microsoft surface 65w power supply