The XG27AQDNG has almost the exact same name as another member of the ROG Strix series of OLED monitors, but comes with a number of crucial differences. It is rated for a refresh rate of 360Hz despite its QHD resolution - which, moreover, is not glossy. The new display also boasts a powered USB-C port alongside support for HDMI 2.1 and DisplayPort 1.4. https://www.notebookcheck.net/Latest-Asus-ROG-Strix-QD-OLED-monitor-debuts-with-anti-glare-360Hz-1440p-panel.878133.0.html
XG27ACDNG and it's using a semi-glossy QD-OLED 3rd Gen panel.