Picture/Display LCD panel type : 1600 x 1200 pixels, Anti-glare polarizer, RGB vertical stripe Panel Size : 20.1"/ 51 cm Effective viewing area : 408 x 306 mm Pixel pitch : 0.255 x 0.255 mm Brightness : 300 cd/m² Contrast ratio (typical) : 700:1 Display colors : 16.7 M Viewing angle : @ C/R > 10 Viewing angle (horizontal) : 178 degree Viewing angle (vertical) : 178 degree Response time (typical) : 14 (black to white) ms; 8 (grey to grey) ms White Chromaticity, 6500K : x = 0.313 / y = 0.329 White Chromaticity, 9300K : x = 0.283 / y = 0.297 Maximum Resolution : 1600 x 1200 @ 60Hz (digital input) Recommended Resolution : 1600 x 1200 @ 60Hz (digital input) Video Dot Rate : 202.5 MHz Horizontal Scanning Frequency : 30 - 98 kHz Vertical Scanning Frequency : 56 - 85 Hz Picture enhancement : SmartImage sRGB : Yes Connectivity Signal Input : Analog (VGA), DVI-I, DVI-D USB : 4 x USB 2.0 Video Sync Input Signal : Composite Sync, Separate Sync, Sync on Green Video input impedance : 75 ohm Sync input impedance : 2.2k ohm Video input signal levels : 0.7 Vpp Power Complies with : Energy Star Consumption : 50 W (Typical) Off Mode : 1 W Power LED indicator : Operation - green, Stand by/sleep - Amber Power supply : Built-in, 100-240VAC, 50/60Hz