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Windows 7: Copy files between USB 3 devices is slow...?

25 Sep 2011   #1

Win 7
Copy files between USB 3 devices is slow...?

I have an USB3 HD (Lacie P'9230) that both HD Tune and Crystal Disk Mark measure to around 100 MB/s read speed.

I also have an USB 3 thumb drive (Flash Voyager) that Crystal Disk Mark measures around 33 MB/s write speed.

When I copy a folder with videos from the HD to the thumb drive, W7x64 shows me the speed totaling 6 MB/s.

What could sink the speed so low, compared to the measurements? Any ideas how to deal with this?

My System SpecsSystem Spec


 Copy files between USB 3 devices is slow...?

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