I tried to contact Quectel Sales through the website form to purchase several units of RM520N-EU modem with the optional GNSS antenna connector, but they do not contact us back, even after a couple of new messages. I cannot find this particular product online, can someone from Quectel answer? I never imagined that buying a product would be that difficult.
I suggest that you provide your purchase requirements and regional information to support@quectel.com, and they will pass it on to the local salesperson and contact you