If you buy an E3372 today, it likely comes with firmware 22.333 (HiLink). If you try to use this with a Raspberry Pi or a travel router (like GL.iNet), it will fight you. The Pi will see it as a CD-ROM or an Ethernet adapter, but not a proper modem.
: It is frequently used with Raspberry Pi modules (such as the Pi 3 and Pi 4) to provide 4G backhaul for remote sensors. Examples include smart grid monitoring and automated agricultural sensing frameworks for detecting environmental contaminants. huawei e3372
: Research teams use the E3372 to provide real-time command-and-control links for drones, allowing them to transmit sensor data and telemetry to ground stations over cellular networks. If you buy an E3372 today, it likely comes with firmware 22
: Features two CRC-9 external antenna connectors to improve signal strength in weak areas. : It is frequently used with Raspberry Pi