Dear Oscar,
Tellurium Q have now got the Black Diamond in production:-
The first review can be seen here:-
http://www.inner-magazines.com/news/503/57/Tellurium-s-Brand-New-Black-Diamond-USB-Cable/#sthash.IExbOYs6.dpuf
Regards Colin
Hi on our web site I think there is few quotes that may be worth a look these are from all over the world. But we do recommend you try the cable for yourself in your system before you decide.
Best Colin Wonfor