How Fast is Your USB Flash Drive? Test it With USBFlashSpeed

The read and write speed of USB flash drives vary between make and model. If you are planning to buy a new USB flash drive, it is very useful to know its read/write speed. In addition, if you know the read/write speed of your USB flash drive, you will get an idea how much time it would take to complete a file transfer between USB drive and a PC.
Here is a little, simple to use and portable benchmarking tool called USBFlashSpeed, which lets you test your USB’s read/write rate at different data sizes and lets you know how fast it is.


It tests USB flash drives at different data levels, for example 25 MB to 1 KB. During the test, the read/write data is always marked on a graph, so you will get an idea of read/write speed of the USB at various data transfer levels.

Using USBFlashSpeed is quite useful. Just follow as described below.


1. Plug in your USB flash drive on your computer and run the benchmark application (no installation needed).

2. Choose your USB flash drive letter and start the benchmark. Wait for results.

You can also compare your results with other results published on the developer’s site! USBFlashSpeed can be downloaded free at developer’s site here.

Kannan is a computer and Android enthusiast, a blogger by passion and a tech freak. His always ready-to-help attitude, knowledge and hard work is what drives him.


  1. Claude Hesselman

    Apr 24, 2017 at 6:57 pm

    Hello, a simple question:
    Does this program install any additional “Gifts” as I have seen complaints about for other testing programs?

    • Kannan

      Apr 26, 2017 at 12:48 pm

      The post is six year old, so check the app before installing on your PC

  2. abhishek

    Aug 17, 2011 at 7:48 am

    i will use this for comparing it with my friends drive. Lets see who wins.

    • Kannan

      Aug 18, 2011 at 2:34 am

      Abhishek, thanks for seeing here!

  3. aatif

    Aug 17, 2011 at 5:31 am

    This application looks great . Will give it a try

    • Kannan

      Aug 18, 2011 at 2:39 am

      Thanks for stopping by

  4. shashank chinchli

    Aug 16, 2011 at 11:52 pm

    Gonna try this application soon! thanks for quick intro!

    • Kannan

      Aug 17, 2011 at 3:18 am

      Thanks for stopping by.

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