Surface pro charger Compatible with Microsoft Surface Laptop 6/Laptop 5/Laptop 4/ Laptop 3/ Laptop 2/ Laptop 1 Charger, Surface Laptop Studio Charger, Surface Laptop Go Charger,Surface Go 2 Laptop Charger,Surface Go 3 Charger, Surface Book/ Book 2 Charger, Surface Power Supply. 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. Safety: All of our chargers has been tested by professional technical engineeers in manufacture center ,in order to ensure safety, 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. 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,