The first 4K 120Hz monitor arrives with a $1,400 price tag
https://www.pcgamer.com/the-first-4k-120hz-monitor-arrives-with-a-dollar1400-price-tag/
A company called Wasabi Mango has released the world's first commercially available 4K monitor with a 120Hz resolution, beating some established players to the punch, including Acer, Asus, LG, and Samsung.
It's a large size 43-inch monitor with a simple 'UHD430' model name. It has two DisplayPort 1.4 connectors, which support 4K at 120Hz (the DisplayPort 1.4 spec also supports 8K at 60Hz), plus three HDMI 2.0 ports, a Toslink optical audio output, and a USB port.