Is the VOXL Cellular LTE and USB Hub Add-on compatible only with VOXL2, or can it be connected to other boards as well? We would like to know whether it has general compatibility for board-to-board connections.

We have identified the VOXL CONNECTOR terminal that connects the VOXL Cellular LTE and USB Hub Add-on to the VOXL2 in the datasheet. However, we would like to confirm if there are other possible connection methods. Specifically, is it possible to use the SERIAL port on the VOXL Cellular LTE and USB Hub Add-on to connect it to another board?

Is the VOXL2 designed solely for autonomous flight, or can it also function as a flight controller (FC) for manual flight using an RC controller?
Additionally, does ModalAI offer a controller that integrates an RC transmitter and a display for real-time video streaming?
We are looking for a controller that supports both real-time video transmission from the camera and RC functionality, and that is compatible with ModalAI’s flight controllers.