HDMI 2.1: What it is and why your next TV should have it | Digital Trends
HDMI 2.1 vs. HDMI 2.0: Which Cable You Should Go for?
Amazon.com: Cable Matters 48Gbps 2-Port 8K HDMI 2.1 Switch 4k 120hz / 8k 60hz, 2-Port 4k 120hz HDMI Switch 8K for PS5, Xbox Series X/S, Apple TV, Gaming Monitor, 4K / 8K
Amazon.com: Angusplay 8K HDMI Switch 2.1 Upgrade Version 2 in 1 Out Supports 8K@60Hz 4K@120Hz Video/ 48Gbps Data Transfer Compatible with PS5/PS4 Xbox Monitor and More : Electronics