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I'm considering to get a new external HD for my Mac setup. While I have an old MBP 2013, I'm planning to buy a new Mac this year (possibly iMac).

Which is more future proof? USB-C or Thunderbolt 3?

closed as primarily opinion-based by fsb, dwightk, nohillside Mar 25 '18 at 7:43

Many good questions generate some degree of opinion based on expert experience, but answers to this question will tend to be almost entirely based on opinions, rather than facts, references, or specific expertise. If this question can be reworded to fit the rules in the help center, please edit the question.

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    I remember when we all thought SCSI was future-proof... ;) – Tetsujin Mar 24 '18 at 9:52
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USB-C it's the physical interface. A USB-C connector can hold either USB (up to 3.1) or Thunderbolt interface.

USB 3.1 has a data signaling rate of up to 10 gigabits per second, whilst Thunderbolt has a data signaling rate of up to 40 gigabits per second.

The faster Thunderbolt connection will ensure a more future proof hard drive.

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