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Specifications
: Since HDMI 2.1 is backward compatible with older HDMI versions it's probably best to buy an HDMI 2.1 cable for future-proofing. Higher HDMI cable speeds can help with higher resolution displays and a fast refresh rate improving motion quality. HDMI 2.1 is also needed for devices that support eARC for better quality audio to soundbars and audio receivers. To get all of the features and speed increase be sure to check if your display and device (PCs game consoles etc. ) both support HDMI 2.1 and its features.