Aisilk the surface connect to usb-c adapter works for Microsoft Surface Book 1/ 2: 45 W PD (15V/ 3A) or greater
Partial Compatibility: Surface Go Surface Pro 3, 4, 5, 6 Surface Laptop Models Surface Book Models * Does NOT work for 18W, 24W or 29W. * If your USB-C charger came with your Iphone or iPad, IT DOES NOT WORK either. Because APPLE USB-C charger does NOT SUPPORT 15V output. * Please check your original charger's power output. If it is 36W or 44W, then you need another 45W PD (15V/3A) power source. * You may experience insufficient power if your USB-C power source is not equal to or greater than your original charger.