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Some basic info about USB (lemmy.world)

submitted 2 months ago by SouravSatvaya@lemmy.world to c/technology@lemmy.world

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[–] GamingChairModel@lemmy.world 5 points 2 months ago (1 children)

The only devices that don't have at least Thunderbolt 3 on all ports do use the Thunderbolt logo on the ones that support it, except the short-lived 12-inch MacBook (non-Pro, non-Air). Basically, for data transfer:

If it's a 12-inch MacBook, the single USB-C port doesn't support Thunderbolt, and only supports USB 3.1 Gen 1.
In all other devices, if the ports are unmarked, they all support Thunderbolt 3 or higher
If the ports are marked with Thunderbolt symbols, those ports support Thunderbolt but the unmarked ports on the same computer don't.

For power delivery, every USB-C port in every Apple laptop supports at least first generation USB-PD.

For display, every USB-C port in every Apple laptop (and maybe even the desktops) supports DisplayPort alt mode.

It's annoying but not actually that hard to remember in the wild.

[–] hibsen@lemmy.world 1 points 2 months ago

I completely forgot the 12-inch one existed.