Acer KG221Q - LED Monitor - 21.5 - 1920 x 1080 Full HD (1080p) - TN - 250 cd / m² - 1 ms - HDMI, VGA - speakers - blackDisplayDisplay diagonal54.6 cm (21.5)Display brightness250 cd/m²Display resolution1920 x 1080 pixelsResponse time1 msDisplayLEDHD typeFull HDDisplay technologyTN+FilmSupported graphics resolutions1920 x 1080 (HD 1080)Contrast ratio (dynamic)100000000:1Display number of colours16.78 million coloursNative aspect ratio16:9Aspect ratio16:93DNDisplay diagonal (metric)54.6 cmMaximum refresh rate75 HzSupported video modes1080pScreen shapeFlatMultimediaBuilt-in speaker(s)YBuilt-in cameraNDesignColour of productBlackFeet colourBlackPerformanceNVIDIA G-SYNCNAMD FreeSyncYThin ClientThin client installedNPorts & interfacesVGA (D-Sub) ports quantity1HDMI ports quantity1ErgonomicsVESA mountingYSwivellingNTilt adjustmentYTilt angle range-5 - 15°Height adjustmentNPowerAC input voltage120-230Power consumption (standby)0.4 WPower consumption (typical)17 WPower consumption (off)0.35 WAnnual energy consumption31 kWhEnergy efficiency classACertificatesEnergy Star certifiedY