Slow UBS 3.0 (up to 5mb/s) Macbook Pro Retina

Hi community,

As I saw in some forums, this is an issue very common but I couldn't solve it yet.

The images below captured from my MBP show both especifications of UBS 2.0 (standard pendrive) and UBS 3.0 (brand new TDK 8GB pendrive) connected directly into UBS ports.

The problem is that UBS 3.0 (suposed to be much faster than 2.0) as we can see is ridiculously slower ( up to 5Mb/s )

I've tried a lot of things such as reseting the SMC, VRAM.. Maybe a problem of the TDK 8GB drivers pendrive (very strange)? I've searched for it and no solution.

By the way, I'm using a MacbookPro Retina with 10.9.1 Mavericks OS (I had same problem with 10.8 Mountain Lion)

Well, If anyone have an idea or suggestion of what can be the problem, will be very appreciatted.

Thanks in advance!

Alex