Viewable Size 31.5" diagonal (27.5" x 15.46") Aspect Ratio 16:9 Contrast Ratio (typ) 1200:1 Viewing Angle (typ) 178o Horizontal and 178o Vertical Response Time (typ) 8 ms (GTG) Brightness (Typical) 300 cd/m2 Display Type IPS LCD Active Matrix Flat Panel Display (TFT) Display Resolution 2560 x 1440 WQHD Tilt Range -5o to +10o Palette 1.073 billion colors (8 bit+FRC) Pixel Pitch 0.2727 Refresh Rate 55 to 76 Hz (60 Hz recommended) Panel Depth 1.95" (49.5 mm) Video Inputs DVI-Dual Link, HDMI, DisplayPort Audio Output No External Connections DVI 24-pin, DisplayPort 20-pin, HDMI 19-pin, 3.5mm headphone out Compatibility PC and Mac (adapter may be required for Mac) (Note: For Mac OSX 10.8.3, DVI-D only supports up to 1920 x 1080) Power Supply Internal Power Consumption (max) 50 W Typical (<0.5W standby) Power Requirements AC 100/240 VAC