Your Satisfaction Is Our Priority: This 65w microsoft surface pro charger is perfect for school office home travel. We do everything in our power to ensure you receive the perfect product every time. In the event of any issues whatsoever with these laptop charger, please feel free to contact us,We offer 120 days of free exchange, 1-year quality assurance, 7 x 24h customer service. Super Fast Charger: 65W Surface charger has a high charging efficiency of up to 96%, the charger can fully charge most laptops within 2 hours, compatible with 44W/36W/24W model. Safety: All of our chargers has been tested by professional technical engineeers in manufacture center ,in order to ensure safety, we adopt premium cooper materials. Chargers has a built-in heat dissipation system to protect the charger from overheating at full power output. The built-in IC chip technology provides overload/short-circuit /overheat protection. 2 in 1 Surface charger: Input:100-240V 50/60Hz. Output:15V-4A 65W, 15V-2.58A 44W, 15V-1.6A 24W, 12V-2.58A 36W; Surface pro charger built-in a USB Port that you can synchronous charging for your Laptop and usb device(phone) by using this charger. Surface pro charger Compatible with Microsoft Surface Laptop 3/ Laptop 2/ Laptop, Surface Pro X, Surface Pro 7, Surface Pro 6, Surface Pro 5(2017), Surface Pro 4, Surface Pro 3, Surface Go/ Go 2, Surface Book/ Book 2, Surface Laptop Go, Surface Power Supply.