1. Widely Compatible: Compatible with Surface Laptop 4/Laptop 3/ Laptop 2/ Laptop 1, Surface Pro 9,Surface Pro 8, Surface Pro 7, Surface Pro 6, Surface Pro 5(2017), Surface Pro 4, Surface Pro 3,Surface Go/ Go 2/ Go 3,Surface Book/ Book 2/ Book 3. 2. Safety Certified: Made with the highest quality materials, Integrated chip technology provides over-voltage / short circuit/ overload/ heat protection system. Has CE, UL, FCC and ROHS certified. 3. Specifications: Input: Input:12V/10A , Output:15V-4.5A 65W, 65W Surface Pro car charger quickly recharges the battery ,very convenient for travel. Come with 1.2M length DC cable cord, perfect to connect portable tablets. 4.High quality materials: Built-in IC chip technology provides overload / short circuit protection / overload protection / heat protection. We test each charger to ensure a tight, strong magnetic connection. We have also sourced a very high-quality material to ensure our power adapter ends will never come loose and its wir