Dell E1715S 17″ Square Screen , Model: E1715S ǁ Viewable Size: 17″ (43.3cm) ǁ Panel Type: TN (Twisted Nematic), anti glare ǁ Aspect Ratio: Squarescreen – Standard (5:4) ǁ Resolution: 1280 x 1024 at 60 Hz ǁ Pixel Pitch: 0.264 mm ǁ Contrast Ratio: 0.264 mm ǁ Response Time: 5 ms (back to white) ǁ Backlight Technology: LED ǁ Viewing Angle: (160° vertical / 170° horizontal) ǁ Color Support: 16.7 million colors ǁ Connectivity: VGA , 03 years Warranty .