I've now ordered a marketplace provider for the second time these cables and am very satisfied. These cables may be obtained on the Internet nor bad at this time because of the USB 3 standard probably starts just about right. Had only the first cable some problems because my W7 ext. WD USB 3.0 (500GB) did not recognize. As I before that a WD USB 2.0 (500GB) had that did not run on that cable, I ordered a second. Behold now recognized W7 the WD. I'm assuming, the Western Digital created here the Probl.. Another ext. Hard drive with USB 3 Verbatim contrast ran from the start properly. That's why for me full credit, since this price this was still quite low.