17'' touch screen monitor is the professional monitor,it uses IR touch screen ItemSpecificationModel No.SY-CMT171C1Display size17.1″Active display area337.9mm( ... ,60Hz,70HzInput & OutputD-15RGB(VGA)input1DVI-D\I(optional)1IR screen systemTouch Resolution4096×4096Connect modelUSB,RS232Glass PropertiesSteel,Luminousness>92%Working Temperature00 ...