I'd like to add a 3G/4G modem to the mix as the board does not have any USB ports only ethernet ports... Is there a PCI-e card I can use that will take a SIM and supports a lot of frequencies and providers. Or does someone have any better ideas here.

Thanks heaps for your help.

I wold also like to know the answer to this question I have a E3276 V2 & i would like to know if the RB433UAHL is compatible before i purchase.