RockTouch touch screen

Alexander New Member Posts: 1
From the documentation of the RockTouch touch screen it is clear that a separate board is present and that the up -board is connected with a DSI and USB cable to this board to the touch screen. RockTouch however has a quite simple adapter to connect the touch screen via USB or RS232 (a PCAP adapter box, Does somebody know why not this adapter box is included bot another board?

Thank already very much for a reply

Kind Regards