what it means when manufacturers claim their product is an “HDMI 2.1” product, and what HDMI® 2.1 features are supported.
HDMI 2.1: Why It Matters for PCs and TVs in 2021
Super Long 4K HDMI 2.1 over Fibre Optic Cable (70 Metres)
8K Ultra High Speed HDMI Cable in Black
The Label Says HDMI 2.1 But That Doesn't Mean You'll Get It
HD2.1V-8K-10M, HDMI 2.1 Ultra High Speed 8K 120Hz Cable
DH Labs HDMI 2.1 Cable – Upscale Audio
DisplayPort 1.4 vs. HDMI 2.1: Which is Better for Gaming?
HDMI 2.1b: What you need to know and do you really need it
SatelliteSale Digital Ultra High-Speed HDMI 2.1 Cable 4K/120Hz 8K/60Hz
LINKUP - Ultra High-Speed HDMI 2.1 8K Cable 360?ø Swivel Angle
GTEK Ultra High Speed 8K HDMI 2.1 Cable - JB Hi-Fi
How to choose an HDMI 2.1 cable: new standard, new problems