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USB 3.0 Drive is Not Working on USB 2.0 Ports

Anonymous
2021-02-24T20:50:13+00:00

I have kesu usb 3.0 scsi disk device which is working on USB 3.0 ports on my computer but not in USB 2.0 ports.

Windows for home | Windows 10 | Devices and drivers

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  1. Virginia M 40,820 Reputation points Independent Advisor
    2021-02-24T21:41:45+00:00

    Thank you.

    Is the device an external hard drive? If yes then it most likely requires extra power which the USB 3 ports supply but the USB 2 ports do not.

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  2. Virginia M 40,820 Reputation points Independent Advisor
    2021-02-24T21:30:07+00:00

    Hello, I’m Virginia an independent advisor with 20 years of expertise in fixing my own & friends’ PC problems.

    Which Windows 10 build are you running - 1903, 1909, 2004 or 20H2 (Oct 2020)?

    While USB 3 ports are backwards compatible with USB 2 USB 3 devices will be extremely slow on USB 2 ports but should work.

    Also the USB 3 device may not receive enough power to run it when using USB 2 so this may be the problem with your device.

    You can try updating the USB drivers from the PC’s manufacturer.

    4 people found this answer helpful.
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  3. Virginia M 40,820 Reputation points Independent Advisor
    2021-02-24T22:10:50+00:00

    Has the device been connected to the PC successfully before?
    What file format is the device using - exact, fat, ntfs, or something else? Can you provide a screenshot of the device manager?

    3 people found this answer helpful.
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  4. Anonymous
    2021-02-24T21:48:01+00:00

    Yes it is external hard drive.

    Support USB2.0 and USB3.0.

    I can see it on Device manager but not in file explorer.

    3 people found this answer helpful.
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  5. Anonymous
    2021-02-24T21:40:08+00:00

    I am using 20H2

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