The LTE IoT branch carrier board is an expansion board that can be used for system level prototype design through the 2nd generation AT&T LTE IoT entry-level kit (USA) or global LTE IoT entry-level kit. These LTE Class 4 IoT starter kits are equipped with a multifunctional Avnet SOM that supports cellular connectivity, GPS position tracking, built-in sensors, dual expansion interfaces, user application hosting, and Starter SIM for data and SMS services