HDMI - Q. Is QED Optical Ultra High Speed guaranteed to work with 4K gaming/TV to the longest 20M length?
Answer:
We had all the latest optical HDMI cables tested and approved at an authorised test centre and they have
been awarded the official Ultra High Speed holographic logo. This means that all the
lengths up to and including 20 m are guaranteed to work with anything HDMI 2.1
can throw at it. That’s up to 8K60. Just scan the QR code on the box which provides full details of the specification.
Example of 'Ultra High Speed' holographic logo.
https://www.hdmi.org/spec21sub/ultrahighspeedcable
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