Monitor maker Viewsonic has launched its XG272-2K-OLED gaming monitor in the US with 2560 x 1440 pixels and a super fast 240Hz refresh rate.

https://www.tomshardware.com/monitors/viewsonic-latest-27-inch-240hz-oled-gaming-monitor-lands-in-the-us-xg272-2k-oled-boasts-002ms-response-time