How many Carrier Aggrigations can 5G RM520N-GL Do?

Hello all, I got a 5G RM520N-GL and wanted to ask how many CA can it do? also can it do 4G and 5G together?

I wanna know that too and if it can get Carrier Aggregation from Bands 4G LTE and 5G all together.

Glad to see someone also interested. I have seen 2 CAs being automatically used on my modem. but i want the AT commands to manually so I have 100% network bandwidth all the time.