This is a stroke of genius. I'm amazed nobody though of it before.
This is the clever bit-
Here's the picture so you can see what they mean-

You see? They've got little arrows printed on the cables so that the signal doesn't get confused and try to turn around.
This is the clever bit-
Additionally, signal directional markings are provided for optimum signal transfer.

You see? They've got little arrows printed on the cables so that the signal doesn't get confused and try to turn around.
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