The MT100A2W-NAM is a cellular modem manufactured by Multi-Tech Systems, Inc. It is an AT&T certified 2G GSM/GPRS/EDGE module that supports quad-band operation on 850/900/1800/1900 MHz networks. The module supports data transfer rates up to 85Kbps, up to 20 concurrent connections, authentication, encryption, and SMS. It features SIM and 3V battery backup and comes with a variety of features, including low power consumption, a range of interface options, a wide-temperature range, and compliance with international certifications. The MT100A2W-NAM is ideal for applications that require cost-effective and reliable communication, such as machine-to-machine (M2M) communication systems, residential and commercial security systems, vending machines, and digital signage.