Bests & Worsts Reviews from Amazon

We are professional system builders and tested 2 of these cables. They are NOT HDMI 2.1 and the DO NOT have the capabilities advertised. It is simply a SCAM. We contacted the HDMI.org and they are going to proceed with an investigation of these scammers. We are still waiting for a refund from Amazon, although we returned the item weeks ago. In other words, we don't have the item, and we don't have the money. UpTab is fraud. BEWARE.