supply multi-touch saw touch screen for all size

The Specification of Controller for multi-touch inWindows XP Support O/S:Windows XP.windows 7 Interface: RS232:Need to install the touchscreen driver Functional parameter: The application of multi-touch in XP should cooperate with the application software at the customer end to match those definition Microsoft made for all the multi-touch gesture action, such as zoom, scroll etc. Currently, In Google earth in XP, it can effect all the multitouch gesture action as Microsoft defined. The Specification of Controller for multi-touch inWindows XP