The 4G module upgrade kit enables you to wirelessly connect SolarEdge inverters to the SolarEdge monitoring platform. Install the 4G module in the inverter and connect the antenna provided to speed up installation and simplify configuration of the communication. The Huawei Smart Dongle-4G (SDongleB-06-EU) is a compact, USB-connected 4G communication module that allows Huawei inverters to connect to the FusionSolar cloud platform via a mobile network.