LD4220TM Digital Sign Display Display size (diagonal) 42 / Resolution 1920 x 1080 / Display pixel 0.485 mm / Brightness (typical) 700 cd/m / Contrast ratio (typical) 1200 - 1 static; 3000 - 1 dynamic / Viewing angles 178 horizontal; 178 vertical / Response time (typical) 9 ms typical Input signal 1 DisplayPort in; 1 DisplayPort out; 1 HDMI; 1 VGA in; 1 VGA out USB and Ethernet ports 2 Speakers Analog audio port