Amazon.com: HDMI Splitter 1 in 2 Out 18Gbps 4K 60Hz,1080P 144Hz, 1080P 120Hz, HDR10 by J-Tech Digital HDMI 2.0b, HDCP 2.2 Compliant with Smart EDID Control, Supports VESA Video formats [JTECH-4KSP12] :
Does HDMI 2.0 support a 3440x1440 resolution at 100Hz with HDR enabled simultaneously? If not, what is the oldest model of GPU (& cheapest) that supports HDMI 2.1 connections (and 2.1 speeds)? - Quora