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I want to buy a USB 3.0 pen drive. But in my pc there is only a USB 2.0 port.

Would a USB 3.0 pen drive work on my pc?

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@Arjan: Yeah, that happens a lot. The SO mods have complained before that I post answers to off-topic questions. But I don't want to have to remember to come back and answer them once they get migrated (and lots of them are such poor quality that they shouldn't ever be migrated in the first place.) Anyway, answer posted. – Cody Gray Apr 14 '11 at 11:39
@Cody, such complaints seem TOTALLY ODD to me! Why not post answers on questions that will surely be migrated? – Arjan Apr 14 '11 at 11:42
(Wow, physical incompatibilities; I'd never have imagined that, @Cody!) – Arjan Apr 14 '11 at 11:43
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1 Answer

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Yes, the various types and technologies of USB ports are generally designed to be backwards-compatible. However, there is no guarantee that this will be true in all cases.

You can find more information on Wikipedia.

USB 3.0 receptacles are electrically compatible with USB Standard 2.0 device plugs if they physically match. Most combinations will work, but there are a few physical incompatibilities.However, only USB 3.0 Standard-A receptacles can accept USB 3.0 Standard-A device plugs.

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