Key specifications include a brightness of 400cd/m², a contrast ratio of 1000:1, and the capability to display 16.7 million colors. The color gamut covers 110% sRGB, and the monitor complies with HDR10 and DisplayHDR 400 for high dynamic range content. It offers wide viewing angles of 178° both horizontally and vertically.
The connectivity options for the ROG Strix XG259QNS include one DisplayPort 1.4, two HDMI 2.0 ports, two USB 3.2 Gen 1 Type-A hub ports, and one headphone jack. The stand provides flexibility with adjustments for tilt (-5 to 20 degrees), swivel (-45 to 45 degrees), pivot (-90 to 90 degrees), and height (0 to 120mm). The dimensions of the monitor are 558mm in width, 218mm in depth, and 492mm in height, with a weight of 5.58kg.