On Tue, Nov 12, 2024 at 06:07:48PM -0500, Dan Ritter wrote: > hlyg wrote: > > > > easiest way to identify usb3 is look at color, both connector and connectee > > shall be blue > > As it turns out, that's not a requirement.
Just a recommendation: "USB 3.0 Type-A and B connectors are usually blue, to distinguish them from USB 2.0 connectors, as recommended by the specification" [1] > > USB A ports can be white, black, blue, red, yellow, green, teal > or purple... or pretty much any other color in the future. > > It's normal for a manufacturer to make all the ports of a given > generation on a single device the same color, but even that is > not mandatory. > > (There are some websites that claim a mandatory assignation of > color to speed. Note that they don't cite sources.) The ref [1] has a source for that. But yes, it's "just" a recommendation, and USB2 doesn't recommend *not* to use blue, so... You can try to peek into the connector and try to spot those extra five pins. But then, the nasty manufacturer might have left them unconnected... Cheers [1] https://en.wikipedia.org/wiki/USB-3 -- t
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