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A comment on USB inventor explains why the connector was not designed to be reversible. Parent comment

Re:USB inventor explains why the connector was not designed ... by HeyLaughingBoy on Tuesday October 10, 2023 @04:04PM (#37836777)
TR/TRRS have very small contact patches since you're connecting to the tangent of a circle. That's not good for anything carrying more than a very small current. And even then, it can be an unreliable contact.
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