I arrived at a question through a web search and noticed that it had been erroneously been closed as an exact duplicate. The question was on how to tell if a port is USB 3.0, and the duplicate question was how to distinguish between USB 1.1 and 2.0 ports. The answers on this question made no mention of USB 3.0, so it wouldn't be useful to anyone trying to determine if a port was USB 3.0.
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You are correct, the other question does not mention USB at all and even goes as far as specifically asking for versions 1.1 and 2.0 of the standard, not version 3.0.