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

Old ports are wired to receive data on certain pins and transmit data on certain pins. If the receive and transmit pins are not lined up correctly information cannot be transferred. If it’s a powered cable like USB swapping your power and signal pins could potentially damage the device.

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