Led monitor hd monitor series dell professional screen size 23 inches max resolution 1 920 x 1 080 pixel lcd technology ips response time 6 ms aspect ratio 169 contrast ratio dynamic 4 000 0001 contrast ratio typical 1 0001 brightness 250 cdm refresh rate 60 hz widescreen dot pitch 0 265 mm viewing angle 178178 pixel density 9578 ppi hdcp enabled number of hdmi inputs 1 number of displayport inputs 1 number of vga inputs 1 monit