19" LCD monitor Contrast Ratio 550:1 Brightness: 300cd/m2 Viewing Angle: Horizontal:176 Vertical:176 Response Time 8ms/12ms Max. Resolution 1280*1024 H-FrequencyRange 30-60HZ V-FrequencyRange 55-75HZ Power Input AC100-240V DC12V Power Consumption <40W Plug & Play DDC2B OUT BOX SIZE 530*150*500(mm) 20'/40'/40HQ 839/1749/1850 WEIGHT N.W.(KGS) 6.15kgs G.W.(KGS) 6.93kgs