Why weren’t all cable ports designed to be plugged in either way?

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One of the best things about USB C and lightning is how you can connect them both ways. Why aren’t all cables like this? HDMI, Ethernet, display port, USB A, etc. Why weren’t these ever designed to go in both ways from the get go? It seems like a simple thing.

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8 Answers

Anonymous 0 Comments

I think identification is one reason. Most people know what an hdmi cable looks, some other connection types might get confusing if they all just start having various shapes as connection points (square, rectangle, octagon etc)

Some need additional measures to making sure the connection doesn’t get broken requiring them to be keyed (network cable)

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