HDMI licensing group launches cable certification program | TechHive
COMPUTEX TAIPEI-Exhibitor Info.-HDMI Licensing Administrator, Inc.
A Look at the Official HDMI® Cable Certification Programs
Amazon.com: Certified HDMI 2.1 8K Ultra High Speed Cable 8K 60Hz HDR 48Gbps eARC VRR Compatible with Dolby Atmos/Vision Playstation 5/PS5 Xbox Series X RTX 3090 Apple TV 4K Roku Fire Sony
Nixeus Ultra High Speed HDMI 2.1 Certified Cables — nixeus
Fake HDMI 2.1 is now a thing, HDMI licensing body doesn't care at all