what it means when manufacturers claim their product is an “HDMI 2.1” product, and what HDMI® 2.1 features are supported.
Monoprice SlimRun AV 8K Certified Ultra High Speed Active HDMI
HDMI 2.1 AM to AM AOC 8K Reel Mounted Cable - Emelec Viascom
Etseinri 8K 4K HDMI 2.1 Cable 3M, Certified 48Gbps Ultra High
8K HDMI 2.1 Cable Certified – 15ft – Optical HDMI
What is HDMI 2.1 and Do You Need It? - Newegg Insider
How to choose an HDMI 2.1 cable: new standard, new problems
GTEK Ultra High Speed 8K HDMI 2.1 Cable - JB Hi-Fi
HDMI 2.1: What It Means for Gear and Gamers
QualGear High Speed HDMI 2.0 Cable with Ethernet, 10 ft. QG-CBL
StarTech.com 16ft (5m) HDMI 2.1 Cable 8K - Certified Ultra High
HDMI Cables at Crutchfield
A DEFINITIVE GUIDE TO HDMI® 2.1A – AVPro Edge
USB C to HDMI 2.1 Cable (8K 60Hz)