Soracom 2G/3G IoT Connectivity Kit (powered by Arduino) | Soracom
3G/GPRS shield over Arduino and Raspberry Pi
GSM/GPRS/EDGE SIM5360E 3G Shield For Ardu Mega Module A GPS Micro SIM Card 3G Network ECALL Development Board From Wholesale Distributor Youareme, $163.84 | DHgate.Com
u-GSM w. EG91E - LTE CAT1(4G), 3G, GSM EMEAA modem from itbrainpower.net on Tindie
Soracom 2G/3G IoT Connectivity Kit (powered by Arduino) | Soracom
Interfacing Arduino to USB GPRS modem « Circuits@Home