Acer 21.5" Inch EK221Q E3 Widescreen LED Monitor

Size of the screen 21.5 inches (≈ 54.6 cm) resolution Full HD (1920×1080) type of panel IPS (In-plane Switching) response time 1 millisecond (VRB) refresh rate up to 100 Hz via HDMI usual contrast ratio 1,000:1 (TYP) maximum brightness 250 nits (cd/m²) effective width dimensions 479 × 260 mm viewing angle 178° horizontally and 178° vertically connections 1× HDMI 1.4, 1× VGA/D-Sub wall mount (VESA) yes, with 100×100 mm size additional features color coverage: approximately 99% sRGB “ZeroFrame” design with thin bezels support AMD FreeSync eye protection technologies: Flicker-less, BlueLightShield