OVERVIEW: HP OMEN 27Q QHD IPS 165Hz HDMI Gaming Monitor 27" 27" QHD (2560 x 1440) Display | Refresh Rate 165Hz | Aspect Ratio 16:9 Brightness 400 cd/m2 | Response Time 1ms Contrast Ratio 1000:1 | Pixel pitch 0.23 x 0.23 mm Height, Pivot, Tilt, Adjustment | Viewing Angles 178°/178° VESA mounting 100 mm x 100 mm | Backlight type Edge-lit