A lot of discussions have focused on DisplayPort 2.0 lately but what is DisplayPort 1.4? It is the previous standard that may be well suited for your needs.
What is DisplayPort 1.4?
mini-DisplayPort 1.4 to DisplayPort 1.4 (passive), Adapters, Supply, Graphics Cards
Uni-directional 8K 60Hz Displayport 1.4 to HDMI 2.1 Cable 4K 120Hz – CABLETIME
Club 3D CAC-1180 Mini DisplayPort™ 1.4 to HDMI™ 2.0b HDR signal converter - Videotooth - BY PROs FOR EVERYONE
Armored DisplayPort 1.4 to DisplayPort Active Optical Cable, 8K, 10 Meters
DisplayPort 1.4 AOC Cable - 15m
DisplayPort 1.4a vs 2.0 (2.1) on GPUs: Why It Matters
VisionTek DisplayPort 1.4 M/M 4.5M Cable
DisplayPort 1.4 Active Optical Cable - Vitex
DisplayPort 1.4 Cable 8K 60Hz 4K HDR 165Hz DP Audio Cable for Video PC Laptop Projector TV Display Port 1.4 DP Cable 1.2 - AliExpress
Monoprice DisplayPort 1.4 to 8K HDMI Cable, 8K 60Hz, 32AWG, 3ft
Rocstor DisplayPort 1.4 Cable (3') Y10C281-B1 B&H Photo Video
3ft Certified 8K DisplayPort 1.4 Cable - DisplayPort Cables & Adapter Cables, Cables
HDMI 2.1 vs. DisplayPort 1.4: Full Comparison, and Pros and Cons - History-Computer
DisplayPort 1.4 UltraHD 8K VESA Certified Cables