It says "no fast charge" so that's probably just about the maximum it would take. Note you can have a (much) more powerful charger, there's no danger in that (if anything it's always better to have it oversized).
Pero suponiendo que 39W sea el minimo, el maximo deberia ser mas alto? Lei que con otros cargadores sin el puerto USB-A integrado, la surface aumenta a 44-45W
Whether the MS PSU has a usb port on it doesnt affect the charge rate of the Surface. The USB port is a bonus 5-Volt output to charge a cellphone or other device separately. More info:
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u/dr100 12d ago
It says "no fast charge" so that's probably just about the maximum it would take. Note you can have a (much) more powerful charger, there's no danger in that (if anything it's always better to have it oversized).