Model Brand: Acer Model: R271 bid Cabinet Color: Black Usage: Consumer Display Screen Size: 27" LED Backlight: Yes Widescreen: Yes Maximum Resolution: 1920 x 1080 Recommended Resolution: 1920 x 1080 Refresh Rate: 60 Hz Viewing Angle: 178° (H) / 178° (V) Pixel Pitch: 0.3114mm Display Colors: 16.7 Million Brightness: 250 cd/m2 Contrast Ratio: 100,000,000:1 Response Time: 4ms Aspect Ratio: 16:9 Panel: IPS Connectivity Input Video Compatibility: Analog RGB, Digital Connectors: D-Sub, DVI, HD