DisplayPort 2.1 is the newest iteration and a major improvement to the widely used DP 1.4 by supporting triple the total bandwidth. This enables higher refresh rates, resolutions, and color.
HDMI 2.1 vs DisplayPort 1.4
Mini DisplayPort 1.4 to HDMI 2.1 HDR 4k@120hz Active Adapter - UPTab
What is DisplayPort 2.1 and is it better than HDMI 2.1?
DisplayPort Cable 2.1 – Stouchi Offical
HDMI 2.1 vs. DisplayPort 2.0: An In-Depth Comparison
VESA Certified) DisplayPort 2.1 Cable, 16K@60Hz, 10K@60Hz, 8K@60Hz
DisplayPort Cable 2.1 – Stouchi Offical
Fibbr 40gbps Displayport 2.1 Cable Displayport 2.1 Cable Is Vesa
Highwings Displayport Cable 2.1, 16K DP 2.0 Cable 6FT
Scan 2m Display Port 2.1 Certified DP40 Cable Black LN138929
MOSHOU DisplayPort 2.1 Cord DP 2.1 Display Port 2.1 Cable 80Gbps
Displayport 1.2 vs 1.4 vs 2.0 – Juiced Systems
DisplayPort 1.4 to HDMI 2.1 8K/60Hz or 4K/120Hz HDR Active Adapter