Panel Size: 31.5"/801.307mm Effective viewing area: 596.74 mm(H) x 335.66 mm(V) Aspect ratio: 16:9 Optimum resolution: 1920 x 1080 @ 60Hz（D-SUB） 1920 x 1080 @ 144 Hz (DVI-D(dual)、HDMI、DP); Smart Response: 4ms (GtG) Brightness (typical): 250 cd/m² Contrast ratio (typical): 3000:1 SmartContrast: 80,000,000:1(DCR) Pixel pitch: 0.36375(H) x 0.36375(V)mm Viewing angle: 178º (H) / 178º (V) @ CR > 10 Picture enhancement: Game mode Display colors: 16.7M Scanning Frequency: 30~83KHz (D-SUB); 30~160KHz (DVI-D(dual)、HDMI、DP); 50-76Hz(D-sub)；50-1146Hz(DVI-D（dual）) 48-146Hz(HDMI、DP) MHL: NO sRGB: YES Signal Input: VGA (Analog ), DVI (Digital), HDMI1.4(digital, HDCP), DP1.2 USB: NO Sync Input: Separate Sync Line In/Earphone: only Earphone 　 Microphone in & out Built-in speakers: no User convenience: Power On/Off, Menu, LED Color/LED Intensity Game mode, Source/ Auto/ Exit OSD Languages: 16 Languages Other convenience: no Plug & Play Compatibility: DDC/CI, Mac OS X, sRGB Windows 8 /Windows 7 Windows 10 Height adjustment NA Pivot NA Swivel NA Tilt -5.5°～23.5° Standby mode 0.5W(typ.) Off mode 0.5W(typ.) Power LED indicator Operation - White, Standby - orange Power supply 20Vdc,2.25A Product with stand (mm) 721.2W x 529.6H x242.9Dmm Packaging in mm 838W*240D*635H Product with stand (kg) 9kg Product with packaging (kg) 11.7kg Temperature range (operating) 0°~40° Temperature Range (storage) -20°~60° Relative humidity (operating) 20%~90 % Relative humidity (storage) 5%~90% Altitude (operating) 0~ 5000m (0~ 16404 ft ) Altitude (storage) 0~ 12192m (0~ 40000 ft ) Environmental and energy RoHS Regulatory Approvals CCC, CEL1, CECP Color Black&Silver