ThinkVision E27Q40 Monitor 27inch QHD resolution with IPS panel 99 sRGB color gamut, 1500:1 Contrast Ratio 100Hz refresh rate, which can be manually adjust to 48Hz Versatile ports 2 x HDMI 2.1, and DP 1.2 and 2x2W speakers Hardware Low Blue Light and Flicker Free Technology Ergonomic stand with LTPS lift, tilt, pivot, and swivel functions 3year