ELi5: How does a cable have higher bandwidth than another?

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I get the difference between something like USB 2 and USB 3 where USB 3 has more wires but how does one USB C cable manage to transfer data faster than another USB C cable that has the exact same number of paths?

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18 Answers

Anonymous 0 Comments

Imagine if each part of a signal on a cable was someone talking. Higher bandwidth means more people talking. If you put everyone talking in a hallway it gets really noisy and you can’t hear anyone. A low quality cable is like a small hallway, very quickly you can’t make out the conversations because it’s too noisy.

A really high quality cable design allows everyone to talk (the multiple signals) without being too noisy to hear. A good one let’s people whisper and still be heard making it possible for even more people to talk.

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