Yo, @Brash !
Good catch and solid homework for standing up a new site!
Meraki was truly limited on the information USB modems were sending to us (via USB) and a lot of times if there was a change made by the carrier to the USB modem, we wouldn't know and would have to play catch up! So, the list of modems we previously had we made good partnerships so that there would be open communication.
**HOWEVER** The previous list of approved modems are all End of Sale and for the most part the manufacturer no longer supports them, so naturally, it's a bit hard for us to support them as they're basically a bit of a black box to us!
--> MG on the other hand .... 😉
--> MX USB modem enforcement is not a thing - but caution: No Guaranteed support
Good luck with the new site! Hopefully it has stacks and stacks of MS... and MRs all over the place... MT to monitor some temp/water/leak... oh and don't forget MV for physical security! ...maybe some SM on all them ios devices? O:)