?Please Note?102W Surface charger is not compatible with Surface Laptop Studio 2 which requires a power input of 127W. Check your device's charging power before purchase. ?24-Month Warranty?Thank you for your support and trust ! We are confident in the quality and performance of our Surface book charger, so we offer you a 24-month warranty. 30-day return for refund and 24-month warranty replacement service with 24 x 7 email support. Unconditional service for any questions. ✓?100% Original Quality?SOURNOVA Surface charger built-in original dynamic software and hardware systems to intelligently learning your daily charging routine to reduce battery aging and intelligently monitoring temperature to safeguard your Surface laptop. Protect against overcharging, short circuiting, overheating, spark. ✓?Streamline Your Charging?Ultra-long 9.19FT allows you to charge anytime, anywhere; strong magnetic interface no matter what kind of light Angle, a touch of charging, cold blue LED display charging status,convenient and quick, complimentary cable strap, travel more convenient!. ✓?Widely Compatibility?Compatible with Microsoft Surface Book 3 (i5 version), 2, 1, Surface Laptop Studio, Windows Surface Pro 9, 8, 7+, 7, 6, 5, 4, 3, X, Surface Laptop 5, 4, 3, 2, 1, Surface Go 3, 2, 1, Surface Laptop Go. Supports 65W, 44W, 36W, 24W Surface laptop/ Surface tablet charger. ✓?Fast Intelligent Charging?SOURNOVA Surface book 2 charger maximum output 102W, according to your surface intelligent output 102W, 65W, 44W, 39W, 36W, 24W, while providing higher charging performance, even when playing can also increase the power.