The 8K HDMI 2.1 Cable improves the image quality with higher resolution and higher refresh rate, and is backwards compatible with previous HDMI 2.0b / 2.0a / 1.4 / 1.3 / 1.2 / 1.1 versions. Note: To realize HDMI 2.1 features, your devices must feature standard HDMI 2.1 ports.
