USB Flash Drive question

Discussion in 'backup, imaging & disk mgmt' started by Oleg, Aug 16, 2016.

  1. Oleg

    Oleg Registered Member

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    I have two Flash Drives of the same brand and model. For some reason transfer and read speed is different. Meaning one faster than the other in speeds. Does it means one of the drives could be defective?.
     
  2. Hadron

    Hadron Registered Member

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    Plug one in at a time, then go into Disk Management > Right click on the Removable Drive (Your UFD) > Properties > Details (Tab).
    Pull down the Property drop down box and select Hardware IDs.

    Compare to make sure that both UFDs are in fact the same.
     
  3. Oleg

    Oleg Registered Member

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    From the looks of it. Ids are the same. Unless i am missing something.


    USBSTOR\DiskUFD_3.0_Silicon-Power32GPMAP
    USBSTOR\DiskUFD_3.0_Silicon-Power32G
    USBSTOR\DiskUFD_3.0_
    USBSTOR\UFD_3.0_Silicon-Power32GP
    UFD_3.0_Silicon-Power32GP
    USBSTOR\GenDisk
    GenDisk

    USBSTOR\DiskUFD_3.0_Silicon-Power32GPMAP
    USBSTOR\DiskUFD_3.0_Silicon-Power32G
    USBSTOR\DiskUFD_3.0_
    USBSTOR\UFD_3.0_Silicon-Power32GP
    UFD_3.0_Silicon-Power32GP
    USBSTOR\GenDisk
    GenDisk
     
  4. Hadron

    Hadron Registered Member

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    Yeah, they look the same.
    I thought that would be an obvious reason, but it must be something else.
    And I am sure you would be testing both of them with the same USB ports.

    Your original assumption must be correct.
    Is there a noticeably big difference in performance?
     
  5. Oleg

    Oleg Registered Member

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  6. Hadron

    Hadron Registered Member

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    Firmware may be the reason, but I would go to the manufacturer's website for the firmware.
     
  7. ssbtech

    ssbtech Registered Member

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    Does the slower of the 2 drives still meet the manufacturer's specification for read and write speeds?
     
  8. Oleg

    Oleg Registered Member

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    It's not specified, but from the first one it's 18MB/s and from another one it 42MB/s+.
     
  9. Brian K

    Brian K Imaging Specialist

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  10. quietman

    quietman Registered Member

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    Strange , but I had a similar experience with two identical Kingston " Data-Traveler " flash drives.

    Both bought from the same batch , same store at the same time , but one had somebody's music collection on it !
    Both in original sealed factory packages ..... I contacted the maker but never did find out how or why .
     
  11. zapjb

    zapjb Registered Member

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    Did you get these at Fry's? This is something Fry's electronics is famous for, repackaging returns & selling them as new.

    @OP Are they the same file formats & cluster sizes?
     
  12. quietman

    quietman Registered Member

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    No , I have never heard of Fry's , but what you describe seems a very feasible explanation for what I experienced .

    I was away from my home country at the time , so I have no idea if the computer store I visited was an independent ,
    or part of a national chain.
     
  13. boredog

    boredog Registered Member

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    sounds like all your usb ports are the same. when I went with macrium reflect I got a sandisk ultra usb 3.0 and really like it so far.
    I remember my first geek squad usb stick was a whooping 1 gig for 99 bucks lol
     
  14. jadinolf

    jadinolf Registered Member

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    Got you beat.

    My first Corsair Flash Voyager 1GB was $55.00.:)
     
  15. boredog

    boredog Registered Member

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    you must have got your 5 years after me lol

    can't remember how much I paid the one mentioned above but it is a 256 gig and was probly 55 bucks.
     
  16. jadinolf

    jadinolf Registered Member

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    My very first Flash Drive was 128Megs and cost $30 U.S. and I still have it and it still works.:)
     
  17. oliverjia

    oliverjia Registered Member

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    I ditched all the UFDs less than 512MB in capacity, and kept about 20 of UFDs varying from 1GB-16GB. I got most of them for free (after rebate).
     
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