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What's different inside a thunderbolt 4 cable compared to a usb c cable? (lemmy.ml)

submitted 1 year ago by Jimmycrackcrack@lemmy.ml to c/computers@lemmy.ml

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So I realise they both have the same connectors, but that they operate using different protocols and different ciruitry inside the thunderbolt or USB based devices that are connected to one another with these cables, but I'm specifically wondering about the differences between USB-c and TB4 cables themselves. Why can't you for example, connect a thunderbolt device to a thunderbolt port using a USB-C cable? (Or can you?) What's different inside the cables which allows them to carry one signal over another despite still both using the same connector at either end of a cable?

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