Display 9 differ Display diagonalDiffers 68.6 cm (27") 81.3 cm (32") Display resolutionDiffers 1920 x 1080 pixels 1366 x 768 pixels Native aspect ratioKnown for one 16:9 — Unknown — not stated by the source TouchscreenDiffers No HD typeKnown for one Full HD — Unknown — not stated by the source Panel typeKnown for one TFT — Unknown — not stated by the source LED backlightKnown for one — Unknown — not stated by the source Backlight typeKnown for one W-LED — Unknown — not stated by the source Display brightness (typical)Known for one 300 cd/m² — Unknown — not stated by the source Response timeDiffers 3.5 ms 8 ms Aspect ratio 16:9 16:9 Contrast ratio (typical)Differs 1200:1 3500:1 Contrast ratio (dynamic)Known for one 20000000:1 — Unknown — not stated by the source Viewing angle, horizontalDiffers 170° 178° Viewing angle, verticalDiffers 160° 178° Display number of coloursDiffers 16.7 million colours 16.78 million colours Pixel pitchDiffers 0.311 x 0.311 mm 0.511 x 0.511 mm Horizontal scan rangeKnown for one 30 - 83 kHz — Unknown — not stated by the source Vertical scan rangeKnown for one 56 - 75 Hz — Unknown — not stated by the source Viewable size, horizontalKnown for one 59.8 cm — Unknown — not stated by the source Viewable size, verticalKnown for one 33.6 cm — Unknown — not stated by the source Viewable size diagonalKnown for one 68.6 cm — Unknown — not stated by the source Digital horizontal frequencyKnown for one 30 - 83 kHz — Unknown — not stated by the source Digital vertical frequencyKnown for one 56 - 75 Hz — Unknown — not stated by the source Sync-on-green (SOG)Known for one — Unknown — not stated by the source Display diagonal (metric)Known for one 68.6 cm — Unknown — not stated by the source DDC/CIKnown for one — Unknown — not stated by the source Colour gamut standardKnown for one sRGB — Unknown — not stated by the source 3DKnown for one No — Unknown — not stated by the source Separate H/V syncKnown for one — Unknown — not stated by the source Display sRGBKnown for one — Unknown — not stated by the source Display panel sizeKnown for one 27 inch / 68.6 cm — Unknown — not stated by the source Touchscreen typeKnown for one — Unknown — not stated by the source Multi-user Touchscreen technologyKnown for one — Unknown — not stated by the source Optical imaging Display brightnessKnown for one — Unknown — not stated by the source 450 cd/m² Screen shapeKnown for one — Unknown — not stated by the source Flat Performance 1 differ Windows operating systems supportedKnown for one Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64 — Unknown — not stated by the source Mac operating systems supportedDiffers Mac OS X 10.0 Cheetah, Mac OS X 10.1 Puma, Mac OS X 10.2 Jaguar, Mac OS X 10.3 Panther, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion NVIDIA G-SYNCKnown for one — Unknown — not stated by the source No AMD FreeSyncKnown for one — Unknown — not stated by the source No OmniTapps Multitouch compatibilityKnown for one — Unknown — not stated by the source Number of simultaneous touchpoints (Windows 7)Known for one — Unknown — not stated by the source 4 Ports & interfaces 4 differ USB hub versionKnown for one 2.0 — Unknown — not stated by the source USB Type-A downstream ports quantityKnown for one 3 — Unknown — not stated by the source VGA (D-Sub) ports quantityDiffers 1 2 DVI-D ports quantity 1 1 DVI-I ports quantity 0 0 HDMI ports quantityDiffers 0 1 Audio inputDiffers 1 Audio outputDiffers 2 PC Audio inKnown for one — Unknown — not stated by the source AC (power) inKnown for one — Unknown — not stated by the source USB requiredKnown for one — Unknown — not stated by the source Number of upstream portsKnown for one — Unknown — not stated by the source 1 DVI portKnown for one — Unknown — not stated by the source HDMIKnown for one — Unknown — not stated by the source Composite video inKnown for one — Unknown — not stated by the source 1 Component video (YPbPr/YCbCr) inKnown for one — Unknown — not stated by the source 1 RS-232 portsKnown for one — Unknown — not stated by the source 2 S-Video inputs quantityKnown for one — Unknown — not stated by the source 1 Ergonomics 1 differ VESA mountingKnown for one — Unknown — not stated by the source Panel mounting interfaceDiffers 100 x 100 mm 400 x 200 mm Cable lock slotKnown for one — Unknown — not stated by the source Cable lock slot typeKnown for one Kensington — Unknown — not stated by the source Height adjustmentKnown for one — Unknown — not stated by the source Adjustable height (max)Known for one 11 cm — Unknown — not stated by the source PivotKnown for one — Unknown — not stated by the source Pivot angleKnown for one 0 - 90° — Unknown — not stated by the source SwivellingKnown for one — Unknown — not stated by the source Swivel angle rangeKnown for one 65 - -65° — Unknown — not stated by the source Tilt adjustmentKnown for one — Unknown — not stated by the source Tilt angle rangeKnown for one -5 - 20° — Unknown — not stated by the source On Screen Display (OSD)Known for one — Unknown — not stated by the source On Screen Display (OSD) languagesKnown for one Portuguese, English, French, German, Italian, Russian, Simplified Chinese, Spanish — Unknown — not stated by the source Number of OSD languagesKnown for one 8 — Unknown — not stated by the source Plug and PlayKnown for one — Unknown — not stated by the source Wall mountableKnown for one — Unknown — not stated by the source Picture-in-PictureKnown for one — Unknown — not stated by the source Other features 3 differ Compatible operating systemsDiffers Mac OS X; Windows 7 Windows XP / 7, Mac OS On/off switchKnown for one — Unknown — not stated by the source TV tuner integratedKnown for one No — Unknown — not stated by the source Exterior finish typeKnown for one Textured — Unknown — not stated by the source Monitor sync input signalKnown for one Separate Sync; Sync on Green — Unknown — not stated by the source Placement supportedKnown for one Horizontal — Unknown — not stated by the source Screen saving functionsKnown for one — Unknown — not stated by the source Signal inputKnown for one VGA (Analog ); DVI-D (digital, HDCP); HDMI — Unknown — not stated by the source Mean time between failures (MTBF)Differs 30000 h 50000 h CertificationKnown for one BSMI, CE Mark, FCC "B", GOST, PSB, SASO, SEMKO, TUV Ergo, TUV/GS, TCO, UL/cUL, WEEE — Unknown — not stated by the source Picture enhancementKnown for one SmartImage — Unknown — not stated by the source User controlsKnown for one SmartImage; Volume; Power On/Off; PowerSensor; Menu — Unknown — not stated by the source Supplied AC adapter typeDiffers LCD AC Dimensions (WxDxH)Known for one — Unknown — not stated by the source 850 x 127.5 x 544 mm Automatic brightness controlKnown for one — Unknown — not stated by the source No Automatic temperature controlKnown for one — Unknown — not stated by the source No HD-ReadyKnown for one — Unknown — not stated by the source Power requirementsKnown for one — Unknown — not stated by the source 90-264 VAC 
