Re:Raspberry Pi 4 not working with some chargers
by moftz on Friday July 05, 2019 @10:58AM
(#20362976)
The physical contacts are different though. You can look down into a USB 3 plug and see the new 5 contacts just as you can look at a USB 3 socket and see the new contacts right up front. Also I don't always see blue in new USB 3 cables and sockets, sometimes it's just black.
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Re:Raspberry Pi 4 not working with some chargers
by Wowfunhappy on Friday July 05, 2019 @11:55AM
(#20363476)
> Also I don't always see blue in new USB 3 cables and sockets, sometimes it's just black.
True, but if the cable is blue, that always indicates USB 3, at least in my experience—I've never seen a blue USB 2 cable. I think this is sufficient given backwards compatibility—how often do you specifically need a USB 2 device?
I very much doubt many "normal" people know to check the contacts.