How can you tell a USB cable version?

Posted by Keltari on Super User See other posts from Super User or by Keltari
Published on 2011-08-25T05:55:02Z Indexed on 2013/11/10 16:00 UTC
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Here is a question a student asked me in one of my A+ certification classes: How can you tell a USB cable version? I honestly dont know the answer, I cant find one either.

USB cables are rated for versions 1, 1.1, 2, and now 3. I have seen their versions on the packaging, but never marked on the cable itself. Since the respective versions are manufactured differently, there is a difference between them.

So, how can you tell?

On Wikipedia: USB cables v.2 and earlier do use a "twisted pair" method, but doesnt specify if the cables themselves are the same or different. Is the cable rating system for v.2 and earlier just marketing hype?

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