Led monitor lcdtft monitor series aoc pro line screen size 27 inches max resolution 2 560 x 1 440 pixel lcd technology ips response time 4 ms aspect ratio 169 contrast ratio dynamic 50 000 0001 contrast ratio typical 1 0001 brightness 350 cdm refresh rate 60 hz widescreen viewing angle 178178 hdcp enabled horizontal frequency range 30 99 khz vertical frequency range 50 76 hz number of hdmi inputs 1 number of displayport inputs 1