NON TOUCH 27" Class Widescreen (27" Viewable Image Size, Diagonal) TFT Active Matrix LCD, LED Backlight, IPS Panel. 16:9 Aspect Ratio. Pixel Pitch 0.311 mm (H)x 0.311 mm (V). Display Area 597.89 mm x 336.31 mm. Brightness 250 cd/m2 (typ). Contrast Ratio 20,000,000:1 (dynamic). Response Time 5ms. Scanning Frequency Horizontal: 30K 83KHz. Optimal Resolution Recommended 1920x1080@60Hz. Connectors 1 x VGA, 1 x DVI-D, 1 x HDMI. Direct-Insert Horizontal Connectors, User Friendly Graphical OSD Menu, VESA 100mm Wall Mount Compliant1, Kensington Security Slot, Includes AOC's eSaver Software, i-Menu Software.