Asus unveiled three new 4k monitors with HDMI 2.1 and support for gaming at 3840x2160 144 Hz. The company also announced a 1440p display with a blazing fast 240 Hz refresh rate and 1 ms response time.
https://www.notebookcheck.net/Asus-introduces-three-new-4K-144-Hz-monitors-with-HDMI-2-1-and-an-ultrafast-WQHD-240-Hz-display-for-gamers.514930.0.html