What Does It Mean When Gear is Marketed as HDMI 2.1 Product?

what it means when manufacturers claim their product is an “HDMI 2.1” product, and what HDMI® 2.1 features are supported.

HDMI Cable 2.1 4K@120Hz Certification 48Gbps 0.75Feet

What Does It Mean When Gear is Marketed as HDMI 2.1 Product?

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