Basically I’m trying to de-clutter the cables to my charging station, and was hoping to use a 3-way cable for my phone, watch, and headphones.
My main concern is if one device is able to successfully negotiate QuickCharge or PD, would that send 9-20 volts to the other devices?
e.g. if I grabbed the wrong cord and hooked it into my laptop, the laptop requests 20v, would that PD negotiation succeed and also send 20v to my 5v devices on the other two leads?
I’ve only used these kinds of cables with USB-A and chargers that can only output 5V. Most of my chargers now are QC/PD so I’m curious if I should avoid those or take any particular precautions.
I would think only the power connection ports are connected ( sort of a “dumb” cable ) Only way i can imagine is either its in their specs or cut one of them open to see what is connected ( dont connect anything after cutting it open )
Two of them are just power (according to the listing) but one does support data transfer. I’m assuming the VCC and ground are shared among all 3. It may not have the CC pins needed to support PD, but QC might be something to worry about.
Probably just going to stick with my hub + individual cables and deal with the spaghetti. lol
Yeah probably, i could think it could become a fire hazard real quick if all of them are used simultaneous, especially if it comes from amazon. Louis Rossman has some good videos about dangers of amazon products ( https://www.youtube.com/watch?v=y83BS_mK9GE )
Power-only is my guess too, and when you only have power pins connected, USB 3 defaults to 5V 1A.