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Powered USB type C hubs and...

Dell Computer Forum - forum.desktopreview.com
So I have a powered USB type C hub with 5V micro USB power input. I don't have a type C multimeter, so I used a USB 3.1 type C to type A adapter to connect standard type A multimiter, and discovered that the hub definitely backfeeds, making it unsafe to use in this configuration - unless power lane is disconnected, one way or another.

The question is - when used with 12V or 20V type C power delivery port of a laptop/tablet, will the circuitry inside said power port prevent backfeeding, or not?

 


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