Meanwhile, I've tried two of these cables (2m) and both were broken. According to the manufacturer, the cables are indeed capable of operating with UHD resolution, but obviously is not the case. I'm still waiting for a response from the seller to my last mail and hope he lets me quickly get another Rücksendeschein so that I can also send this cable back. That reminds me too long the whole thing with the exchange and I urgently need a working cable, I'm going to order me in the meantime with another seller another cable. But surely none more by Delock.