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Why don't smart watches use USB-C to recharge?
(shkspr.mobi)
This is a most excellent place for technology news and articles.
You don't need to follow the entire spec for a usb c. Usb c has a display port mode, but most laptops that have this won't have it on every port. Most usb c cables also don't support display port mode, which is annoying because they usually won't say if it supports it.
Usb c extension cords are not allowed and yet they exist