HDMI Versions Without the Marketing Confusion

Resolution and refresh rate define a bandwidth need.

Add color depth, chroma format, HDR, VRR, and audio return features. Every active device in the chain must support the required combination.

Certified cable classes matter more than a numbered marketing phrase.

Choose the certified category required for the signal and verify its label. Expensive materials do not improve an error-free digital picture.

Backward compatibility does not create missing features.

A source, receiver, switch, cable, or display can lower the resulting mode. Inspect each link when 4K, high refresh, HDR, or eARC fails.

Products may implement selected features.

Use the manufacturer’s supported-format table for the exact input and model. A broad HDMI version badge is not a complete capability statement.