We are having a connection problem trying to connect a BlueRov2 with a FathomX on the QGC.
QGC requires at least 8GB RAM and we are running it in a laptop with 4gb RAM, could this be the problem?
Hi @esanchezc13, welcome to the forum 
If it’s not connecting I’d recommend you go through our troubleshooting steps.
Those requirements are to ensure reasonable performance levels. You may have issues with poor performance (especially with the video stream), but I would expect it should at least be able to connect to the vehicle.