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I don't have any USB-C devices, yet.

Is it possible to purchase USB-C cables that work for everything? Or are (some of) the different supported protocols incompatible?



Yes. What defines the protocol is the endpoints, not the cable. Just avoid the "USB 2.0" USB-C cables, which do not connect all the pins (only the ones needed for USB 2.0). Of course, higher speeds and higher charging currents need a higher grade of cable, but that higher-quality cable will work with lower speeds and lower currents. Take a look at the Wikipedia article: https://en.wikipedia.org/wiki/USB-C


AIUI: nothing is protocol-incompatible, but Thunderbolt-compatible cables are short, stiff, and expensive. So you can buy only those, but you do make sacrifices to do so.




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