Hi, I bought a cable of yours via amazon.co.uk.
I recently (minutes) created a support request in http://www.club-3d.com/index.php/support/contact-us-for-technical-support/cables-adapters.en.html
Since I did not get a confirmation e-mail, I searched and found this forum.
Basically my CAC-1070 Display Port 1.2 to HDMI 2.0 4k 60Hz stopped working after 2 months of usage.
Amazon says to contact the manufacturer, which is you.
How can I return or exchange this item?