Turns out that “HDMI 2.1” ports don't need to actually support HDMI 2.1 features | Ars Technica
Slaying the Cable Monster: What You Need to Know About HDMI Cables | PCMag
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What is HDMI 2.1? An Overview - RTINGS.com
Buying a 4K TV: What you need to know about HDCP 2.2, HDMI 2.0, HEVC & UHD - HardwareZone.com.sg
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