Acer HA220Q bi 21.5" IPS Full HD Monitor Ultra-Thin Design,Black. 21.5" HD (1920 x 1080) widescreen IPS Display, Response time: 4ms. Viewing Angles:178 degree Horizontal,178 degree Vertical, Pixel Pitch: 0.248mm. Power Description- Operating Power Consumption (Energy Star)- 24 W. Standby Power Consumption- 450 mW. Off-Mode Power Consumption- 400 mW, Signal inputs: 1 x HDMI & 1 x VGA. Refresh Rate : 60Hz (Hertz) Swivel angle and maximum adjustable height not present. Adjustable display pivot not present. The Acer HA220Q bi 21. 5" widescreen LCD display combines stylish ultra-thin functionality with amazing 1920 x 1080 resolution, allowing you to enjoy high-definition entertainment in the comfort of your home. Incredible 100, 000, 000: 1 contrast ratio and rapid 4ms response time highlight the advanced technology, but this display is as well. The HA220Q bi LCD also features multiple inputs with VGA and HDMI for greater compatibility, a Kensington lock slot to protect your investment, and energy star compliance to help you save money and energy.