Problem with USB 3.0 on motherboard not attaining USB 3.0 speeds

Hey all, long time lurker here. This community helped me out frequently over the years. So thanks for that.

Now however, I have a specific issue I can not find the answer for.

I have an intel dz68zv motherboard. It has 2 USB 3.0 Ports. I installed the USB 3.0 Host controller utility driver that is available of the intel website (Renesas electronics) and am using the most current BIOS.

When I plug in an USB 3.0 flashdrive in the USB 3.0 port on the motherboard, the transfer speeds I am getting from either my 7.200 rpm HDD or from my SSD to the flashdrive is just 20 megabyte per second at most.

So far, I have been unable to get the increased transfer speed that one would expect when using an USB 3.0 port. Any ideas of what might be wrong and what I can do about it?

Thanks in advance.
4 answers Last reply Best Answer
More about problem usb motherboard attaining usb speeds
  1. Best answer
    anything to a USB flash drive is slow, as USB flash drives have slow transfer speeds, much slower then a SSD or HDD.
  2. Thanks for the reply. I was under the impression that modern flash drives could attain faster transfer speeds than this. I guess the best option is to invest in an external drive that allows for faster transfer.

    I guess USB2 or USB3 on a flash drive is kind of pointless. If what you say is true, both are capped at pretty much the same speeds.
  3. yes, but if you had a 3.0 thumb drive, it will go higher. The transfer speed will only copy at the speed of the slowest drive, though the SSD can copy much faster, the thumb drive cannot support such high speeds, considering a fast SSD can go up to 520MB/s write!
  4. As always the weakest link in the chain determines read/write speeds, the flash memories on generic USB sticks tend to not be very fast. (=a few MB/s to a couple dozen MB/s on expensive units)

    If you're using "real" storage like a HDD you can expect USB 3.0 to cap out the drive, I'm getting pretty much the same transfer speeds on USB3 as eSATA on my drives, like 100MB/s on new-ish SATA drives, and the latency and overhead is way less than USB2 also, quite noticable.
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