Power Input(AC): 100-240V 50/60Hz. Output(DC):15V-4A 65W. USB Port: 5V-1A 5W(Work for cellphones). The charger also Compatible output power of 15V-2.58A 44W, 12V-2.58A 36W and 15V-1.6A 24W COMPATIBILITY:Microsoft Surface Go, Surface Go 2, Surface Pro 3,Surface Pro 4,Surface Pro 4 M3,Surface Pro 5,Surface Pro 6,Surface Pro 7,Surface book (1/ 2/ 3 -13.5 inch) ,Surface Studio,Surface Laptop 2 & 3 & 4, ,Surface pro X; Model:1703 1796 1706 1873 1735 1724 1631 1782 1769 1736 1800 1625 It's all about quality. The highest-performing Microsoft Surface replacement charger on the market! Top benefits: - built to brand quality standards! - SUPER strong power cord Surface- no breakdowns, no fire hazard - thoroughly tested for performance & durability this is your precious laptop we're talking about! Don't settle for anything less than the best to keep it safe. No risk of overheating, short circuiting, or overcharging Each Power Adapter undergoes rigorous performance testing