Is it possible to use something like this:
http://www.aliexpress.com/store/product ... 25216.html
(or something else that has SIM slots on miniPCI-e card)
Or do I have to get RB953GS-5HnT-RP with two SIM slots onboard? Are the SIM slots on motherboard a requirement?
I'd prefer RB433UL as I could add 2.4GHz wireless card and it's a bit cheaper. Also the outdoor case fits 433 but not 953 from what I understood. I'm looking to build ~40 routers with 3G/4G broadbands from two different carriers.
Does anyone have recommendations for 3G/(or 4G) modem? List of the supported devices is so long that it's hard to guess which one would be good