4k monitor led monitor series nec multisync screen size 27 inches max resolution 3 840 x 2 160 pixel lcd technology ips response time 5 ms aspect ratio 169 contrast ratio typical 1 0001 brightness 350 cdm widescreen dot pitch 0 155 mm viewing angle 178178 display settings srgb support horizontal frequency range 31 5 135 khz vertical frequency range 30 75 hz number of hdmi inputs 1 number of displayport inputs 1 number of dvi inputs