Dell S2240T 21.5-Inch Touch Screen LED-lit Monitor Sleek and stylish - Edge-to-edge glass gives the Dell 21.5" touch monitor a clean finish that boasts of fine craftsmanship. Enabling touch is easy! Simply connect a USB cable from your PC to the monitor's USB upstream port, and use either an HDMI, DVI or VGA cable to project images onscreen This is not a computer. Requires a standalone computer to use.Touch technology:Projected capacitive system,Sensor stack thickness:1.1 mm,Cover glass thickness:1.1 +/- 0.2 mm,Touch method:Fingers and thin gloves,Touch point:10 touch-points,Response time:25 ms. Compatibility- All Operating System Weight of monitor only (without stand): 7.49 pounds .Height (extended):370.8 mm (14.60 inches),Width:522.5 mm (20.57 inches),Depth:205.7 mm (8.10 inches)