BTI 100 W car/lorry travel adapter, compatible with Microsoft Surface Book 1 / 2 / 3, Surface Go 1 / 2 / 3 / 4, Surface Laptop 1 / 2 / 3 / 4 / 5 / 6 / 7, Surface Laptop Go 1 / 2 / 3, Surface Pro 3 / 4 / 5 / 6 / 7 / 7+ / 8 / 9 / 10 / 11 / X. OEM P/N: n/a We recommend: Advance exchange for this product is available directly through Origin Storage throughout the 24-month warranty period. Questions about compatibility? Our product manager will be happy to assist.