Led monitor lcdtft monitor series dell ultrasharp screen size 27 inches max resolution 2 560 x 1 440 pixel lcd technology ah ips response time 6 ms aspect ratio 169 contrast ratio typical 1 0001 brightness 350 cdm refresh rate 60 hz widescreen viewing angle 178178 hdcp enabled number of hdmi inputs 1 number of displayport inputs 1 usb 30 ports 4 outputs displayport monitor connection mini displayport ergonomic properties pivotable