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I have a thumb drive and it has a black colored USB port. I plug into a computer that only have USB 2 port. At first, it can be identify. I did a format and suddenly, the device cannot be recognized.

May I know how I can tell if the thumb drive is a USB 2 or USB 3, given that it does not have a blue colored USB port and there are no markings or identifier to tell if the thumb drive is a USB 2 or 3.

I also notice that under the Eject thumb drive option, I notice it label as 'USB 3 check!'. This made me wonder if the thumb drive is a USB 3 device.

Please enlighten me.

Thank you.

user275517
  • 607

1 Answers1

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While they have the same footprint, the USB 3.0 connector has an extra set of 5 pins

enter image description here.
It is also supposed to be blue by specification I believe.

Your drive is probably USB 2.0

Journeyman Geek
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