USB 3.0 Drive Speeds

Montana Man
Montana Man used Ask the Experts™
on
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.
Comment
Watch Question

Do more with

Expert Office
EXPERT OFFICE® is a registered trademark of EXPERTS EXCHANGE®
Lee W, MVPTechnology and Business Process Advisor
Most Valuable Expert 2013

Commented:
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 ManDigital Leader

Author

Commented:
lots of small files, the drives are brand new.
Laroy ShtotlandIT Security Consultant

Commented:
Are the appropriate USB 3.0 drivers correctly installed?
Montana ManDigital Leader

Author

Commented:
I believe so, looking at HP website now.
Lee W, MVPTechnology and Business Process Advisor
Most Valuable Expert 2013

Commented:
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 Consultant

Commented:
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 ManDigital Leader

Author

Commented:
I have the latest and greatest
Lee W, MVPTechnology and Business Process Advisor
Most Valuable Expert 2013
Commented:
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.
noxchoIT Product Manager
Top Expert 2009

Commented:
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.
IT Security Consultant
Commented:
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.
Montana ManDigital Leader

Author

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

Do more with

Expert Office
Submit tech questions to Ask the Experts™ at any time to receive solutions, advice, and new ideas from leading industry professionals.

Start 7-Day Free Trial