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HDMI 2.1: What you need to know - CNET
What is HDMI 2.1? An Overview - RTINGS.com
8K HDMI 2.1 Cable 16.5FT ,Certified Ultra High Speed HDMI Cord for PC, PS5, PS4, Xbox Series X, Roku/Fire/Sony/LG TV - Walmart.com
What is HDMI 2.1? An Overview - RTINGS.com
LG launches CX OLED TVs with HDMI 2.1 – 48" model coming in June - FlatpanelsHD
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LG C9 OLED (OLED55C9, OLED65C, OLED77C9) 4K HDR TV Review | Digital Trends