The cable is of good quality, not as thin as some other famiy cable.
With USB 2.0 I have the cables also successfully tested, no problem ..
I achieved with USB 3.0 Seagate GoFlex hard drive to a write rates of about 60 MB / sec.
With USB 2.0, there were only about 20 MB / sec.
I bought at O. Kluge
Am fully satisfied