The latest is the TTGO T-Call, an ESP32 breakout board that also has a cellular modem. Yes, it’s only a 2G modem, but that still works in a lot of places, and the whole thing is $15. On board ...

A modem for use in a laptop or other computer with a PC Card (PCMCIA) slot. Modem PC Cards come in landline and wireless varieties, the latter enabling you to connect to a specific cellular or ...

Oberthur Card Systems' SIMphonIC 3G 64 RSA 32-bit smart card is a new, high-security, high-performance, dual mode SIM card embedding 2G applications as well as offering 3G SIM Tool Kit capability, ...