Tested and confirmed to be working at the time of listing. There are no dead pixels on the screen. The screen image is clear and without any problems. Main Specifications Monitor Size: 23 inches Monitor Type: Wide Backlight: LED Backlight Surface Treatment: Non-glare (Matte) Resolution: 1920x1080 Viewing Angle: (Vertical/Horizontal) 160/170 Pixel Pitch: 0.265 mm Brightness: 250 cd/m2 Contrast Ratio: 1000:1 Response Speed: 5ms Maximum Power Consumption: 28.2 W Input Terminals: D-Sub x1, DVI x1, HDMI x1 Accessories Power Cable (I.O DATA)