The power source must support 15V PD output via USB-C. At least 29W for Surface Go, and at least 36W for Surface Pro and Laptop. Most devices are switching to USB-C power. Compatible With Microsoft Surface Pro 3, Surface Pro 4, Surface Pro 5,Surface Pro 6, Surface Laptop 1 ,Surface Laptop 2, Surface Book1 ,Surface Book 2 and Microsoft Surface Go;.
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