Specification ,Input: 100-240V 50/60Hz; Output: 15V 4A 65W; USB port allows ( USB 2.0,USB Port 5V-1A 5W ) Widely Compatibility , Microsoft Surface Go(2018), Surface Pro 6(2018 Latest release), Surface Pro 5(2017), Surface Pro 4(2015), Surface Pro 3(2014), Surface Pro (2014~2018), Surface Laptop 2(2018 Latest release), Surface Laptop, Surface Book and Surface Book 2. Replacement for 24W/ 36W/ 44W power supply charger Safety & Security First , All Surface Pro Surface Laptop Chargers are passed CE FCC RoHS Certified. Made from durable, high quality materials and includes multiple smart features safeguarding against over-charging, over-power, over-current, discharge, over-voltage, high temperature, short-circuit, Electromagnetic wave.You can rest assured to use Practical ,Provide USB port 5V-1A 5W to charge your Android phones or iPhone at the same time. Premium material can bear Microsoft surface book charger cord bending for durability