Dear Doungjai,
You cannot buy either the USB dongle or the PCI motion board. You have to buy 1 set of usb dongle and PCI board. Because one usb dongle cannot be used on another PCI board.
So total I would presume you need 3 sets of USB dongle and PCI cards.
Also item one is called a USB dongle.
Also for item 2 (S/N : CLDP1203112) why do you need 2 PCI boards?