Compare the speed of USB flash drives

USBDeview has a new feature that allows you to test the read and write speed of your USB flash drive. But the more interesting feature is the ability the submit the speed test result to, so you and other people will be able to easily compare the speed of many USB flash drives.

In the first 24 hours of this USBDeview release, I already received more than 50
speed test records, which is quite impressive.

However, in this growing speed tests list, there is a lacking of 32 GB and 64 GB flash drives, probably because these flash drives are still quite rare and expensive, and most people simply don’t purchase them.
(I must admit that I also have only 16GB flash drive, and I won’t purchase the larger flash drives until their price will decrease…)
Just for example: The price of ‘Kingston DataTraveler 64 GB’ at Amazon is $148, and there are some other 64 GB flash drives that are even more expensive.

If you already have one of these expensive 32GB/64GB flash drives, I’ll be glad if you test them with USBDeview and submit the test result to

Also, be aware to the difference between USB Flash Drives and USB external hard disk drives.
Flash Drives are memory devices that stores the data in flash memory, while USB external hard disks are regular hard disks plugged to USB that stores the data in magnetic surfaces, like the hard disk inside your computer.
Currently, the largest available flash drives can store up to 64 GB of data, while external hard disk drives are avialble in much larger sizes, and some of them can store more than 1 TB (1000 GB) of data.


  1. imasuperdotcom says:

    That's neat. This is the first time you've incorporated your community into your site. Undoubtedly, you have lots of fans, readers, and visitors. It'll be fun to contribute to your site, even if only by submitting data. 🙂

  2. Jeffrey Klassen says:

    Nice feature, you may want to correct the readout of "Mb/Sec" to "MB/Sec" so its megabytes instead of megabits. Although I think most people using the app would know what you meant, and really it is very minor.

    PS. Thank you very much for all your awesome utility's.

  3. Nir Sofer says:

    No problem, I changed it to "MB/Sec"

  4. Osito says:

    What about External SSD drives, they store on non-magnetic surfaces, but are not meant as Flash Drives nor Disk Drives and had a lot of big sizes, also external ones support USB and eSATA

  5. TerDale says:

    Hi Nir,

    Is it really needed to have Admin rights to conduct the test?
    Anyway, it doesn't work as non-admin, with not even an error message. If Admin is indispensable, that would be nice to tell so when the test is tried as non-admin.

    Additionally, I think an important information is missing in the comparison table: the file system with which the USB drive was formatted. Though most are formatted in FAT32 by default, it is possible to change this, for instance mine is in NTFS, and future ones could be in exFAT. What do you think?

    Great feature BTW, and thanks for your may tools

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