Gaming monitor series acer predator screen size 27 inches max resolution 2 560 x 1 440 pixel lcd technology tn response time 1 ms aspect ratio 169 contrast ratio dynamic 100 000 0001 contrast ratio typical 1 0001 brightness 350 cdm refresh rate 60 hz widescreen dot pitch 0 233 mm viewing angle 178178 hdcp enabled horizontal frequency range 30 209 khz vertical frequency range 24 144 hz number of hdmi inputs 1 usb 30 ports 4 sy