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[–] 9 points 4 months ago (7 children)

usb c (actually thunderbolt)

aren't these different tech stacks and connectors?

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  • [–] 18 points 4 months ago (5 children)

    used to be, not anymore though, thunderbolt uses the same ports as USB C and is compatible with USB C, you can think of thunderbolt as enhanced USB C

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  • [–] 0 points 4 months ago* (last edited 4 months ago) (4 children)

    is it thunderbolt emulated through software on the USB pin stack? or is it really thunderbolt pins offering a USB connector, emulating USB protocols on the thunderbolt stack?

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  • [–] 3 points 4 months ago (1 child)

    Its capable of some pretty high bandwidths, there's some extra hardware required to make the ports work for thunderbolt. But I think it just runs through the normal USB-C pins.

    Its more like an internal switch, rather than emulation. At least the Wikipedia page mentions different pin configurations per usage mode...

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  • [–] -4 points 4 months ago

    I asked a slop machine and it said that Thunderbolt is implemented in the PCIe/Displayport hardware mode of the USB. I then checked the wikipedia and it more or less aligned with that interpretation

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  • [–] 3 points 4 months ago

    Macbooks have had Thunderbolt 3 (the protocol) over USB-C (the physical form factor) since about 2015. The Thunderbolt 3 protocol became incorporated into the USB 4 standard in 2019 (and is implemented on the physical USB-C port).

    Earlier versions of Thunderbolt were proprietary standards jointly controlled by Apple and Intel, but implemented over Mini-DisplayPort connectors. They were phased out in new devices starting in around 2015.

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