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Gigabit LTE (Advanced Pro) in Several Routers and 1 Add-On Modem CardAlan Spicer Marine Telecom Blog | Alan Spicer Marine Telecom Blog
These are available now. And are supposedly future upgradable to 5G as that rolls out. You can't change the built-in modem but these routers come with an MC-400 modem slot for future upgradabilit