Reference video and i2s audio signal transmission for up to 10K resolution, 120 frames per second and eArc compatibility
HDMI 2.1 vs. HDMI 2.0: What's the Difference?
4X clear compared with 1080p. HDMI 2.1 technology is backwards compatible with HDMI 2.0b/2.0a/2.0/1.4/1.3/1.2/1.1. Latest Optical Fiber 8K HDMI Cable.
2.1b (8K@120Hz) HDMI Cable 3D with Ethernet for Apple TV,PS4 PC,LG,VIZIO Sharp
Hdmi 60hz 4k Cable Optical, Hdmi Cable Fiber Optic 8k
HDMI 2.1 Active Optical Cables - Qualtek Electronics
Ultra high speed HDMI 2.1 spec released, with a new cable to boot
8K HDMI Extenders, HDMI 2.1 Extender
SatelliteSale Digital Ultra High-Speed HDMI 2.1 Cable 4K/120Hz 8K/60Hz
8K HDMI 2.1 Cable - Braided – iVANKY
AV Access 8K HDMI Fiber Optic Cable, 15m/50ft HDMI 2.1 ARC Cable
Inland HDMI 2.1 Cable (Black) - 6 ft. (2 Pack) - Micro Center
HDMI 2.1: What you need to know - CNET