Huawei E3372 E3372H-510 150Mbps LTE USB 4G Modem With Dual Antenna Port Support B1/B2/B4/B5/B7/B28 - AliExpress
Itead Raspberry Pi 3 Model B+ plus SIM800 GSM/GPRS Module Add-on V2.0 also for Raspberry pi 3 also - AliExpress
LTE uplink for Raspberry Pi: Huawei E3372 vs Waveshare SIM7600E-H -
LTE USB modem as WAN2 failover with Raspberry Pi | Ubiquiti Community
Raspberry Pi 3 Model B 1GB RAM 1.2GHz Quad-Core ARM 64 Bit CPU with Shell Clear Case+5V 2.5A Power Adapter+Heat Sink - AliExpress
3. Installing 4G USB modem to Raspberry Pi – RC Bellergy's Drones
Raspberry Pi - Huawei LTE-Stick E3372 | Pi-Shop.ch
Internet Connection to Raspberry pi 3 (Raspbian Stretch) with a 4G Huawei Mobile Broadband LTE USB Stick (HUAWEI E3372) using wvdial | Jayasundera's Blog