USB 3.0 Drive Speeds

Hey there, I have two WD My Passport Ultra USB 3.0 disk drives that only transfer data (coping between the two drives) at speeds of only 35.4 MB/Second.  Any idea's of why they are so slow?  I am plugging them into the "blue" usb ports on my computer.
Montana ManIT SupportAsked:
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Lee W, MVPTechnology and Business Process AdvisorCommented:
What are you copying?  Small files of a few KB to a couple MB will copy much slower than a large ISO or video file.

You may also need to upgrade your computer's USB3 drivers.

And your hard drive might be old, failing, full, fragmented, slow, or busy doing other things.
Montana ManIT SupportAuthor Commented:
lots of small files, the drives are brand new.
Laroy ShtotlandIT Security ConsultantCommented:
Are the appropriate USB 3.0 drivers correctly installed?
Montana ManIT SupportAuthor Commented:
I believe so, looking at HP website now.
Lee W, MVPTechnology and Business Process AdvisorCommented:
Sorry, but lots of small files just take longer.  The file has to be found, opened, read, read, closed, Instead of found, opened, read, read, read, read, read, read, read, etc, closed.
Laroy ShtotlandIT Security ConsultantCommented:
I'd suggest using USB Device Tree Viewer to determine what type of USB connection is actually being established with the device (ie "High-Speed" or "SuperSpeed").

Select the device you're concerned with and examine the Connection Information to that appears in the right pane.

Devices connected in USB 3.0 "SuperSpeed" mode will report:
Device Bus Speed         : 0x03 (SuperSpeed)

Devices using USB 2.0 will show:
Device Bus Speed         : 0x02 (High-Speed)
Montana ManIT SupportAuthor Commented:
I have the latest and greatest
Lee W, MVPTechnology and Business Process AdvisorCommented:
The best you can expect is about 100 MB/Sec.  You're getting 35 with small files.  This is what I expect.  If you defrag both drives, don't have anything else the computer is doing, then you MIGHT improve that a little... but if these are small files (again, many, many files of 1-2 MB OR LESS, especially if they are tiny of less than 100K, speeds like this are to be expected.
noxchoProduct ManagerCommented:
You shouldnt expect a very high speed on USB3.0 by copying lots of small files as noted above. There are plenty of small operations which steal your speed.
Laroy ShtotlandIT Security ConsultantCommented:
If you'll see your bus speed is USB 3.0 - 0x03 (SuperSpeed) - then you can only try removing all other USB devices.
I'd agree that 35Mb/s with small files is normal for a slow 5200-5900 rpm drive, if it is the case, then replace it with a faster one, or better an SSD.

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Montana ManIT SupportAuthor Commented:
Thanks guys, I guess it is what it is.  I did download and install USB tree Viewer.
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