Elo ET1515L 15" LCD Touchscreen Monitor - POS Display - Model E344320 - Untested

Model: Elo 1515L (ET1515L-7CEC-1-GY-G). RS232 / Serial (Green DB9 Port): The alternative connection for the "touch" function, often used with older legacy POS systems. VGA (Blue Port): This is the standard video input for your computer's display.