Ultra high speed HDMI 2.1 spec released, with a new cable to boot
The HDMI Forum's Technical Working Group has released the specs for HDMI 2.1, as well as a new Ultra High Speed HDMI cable. Some of the 2.1 spec's features will be backward compatible with your existing HDMI 2.0 cable, others will require you to upgrade.
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Crutchfield Premium HDMI 2.1 Cable
Premium Cable: J&D 8K HDMI 2.1 cable supports 8K@60Hz and 4K@120Hz; can clearly display every particle, processing every source; transmission speed is
J&D Ultra High Speed HDMI 2.1 Cable, 2.1 Version HDMI Cable Adapter Support 8K 120Hz 4K Dynamic HDR eARC Dolby with 48Gbps Bandwidth for PS5, Xbox
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