Ultra high speed HDMI 2.1 spec released, with a new cable to boot
Amazon.com: UVOOI Active Mini DisplayPort to HDMI 2.0 Adapter Cable 6 Feet, Mini DP to HDMI Active Cable Supporting Eyefinity Technology & 4K@60Hz, 1440P@144Hz Resolution-A2 : Electronics
HDMI 2.0: What you need to know - CNET
HDMI 2.1 vs. DisplayPort 2.0: An In-Depth Comparison
HDMI 2.1 Specification Sets New Resolution Standard | TechPowerUp