Is it possible to increase the quantity of CAN connectors in one Drive PX 2?

Is it possible to increase the quantity of CAN connectors in one Drive PX 2?

You can just add some Linux/SocketCAN supported CAN-USB adapters via USB to your PX2.
I would suggest the PEAK USB FD adapters or the CANUSB adapter from 8devices (Classic CAN only).
I would NOT suggest CAN adapters using the slcan driver (which are mostly low cost adapters with the SLCAN ASCII protocol). Only native USB adapters (you can find in linux/drivers/net/can/usb/*) support proper error reporting and error recovering.

I successfully used the PEAK USB FD pro on my Drive PX2 Chauffeur board yesterday.

Regards,
Oliver