Features & Compatibility Perfect 21.5″ screen size for the programming, coding & website design workspace. TÜV certified display ensures the protection and health of eyesight. MSI EyesErgo technology with Anti-Flicker technology helps prevent eye strain and fatigue. 100 Hz refresh rate provides a better viewing experience with flicker-free image. MSI Eye-Q Check helps have self-check eyes & reminds to take a rest while using the monitor for a long time. Maintain versatility across various devices by utilizing multiple input sources, such as HDMI™ and D-Sub(VGA) ports. Enjoy the cleanest environment with a convenient and removable cable management design. Standard VESA mountable & Accessory slot design.