Amazon.com: EXVIST 4G LTE M.2(NGFF) to Mini PCIe Adapter W/O SIM Card Slot for 4G/3G LTE Module Suitable for M2M & IoT Applications Like Raspberry Pi Industrial Router Video Surveillance etc. :
When LTE-M/NB-IoT meets renewable energy | Bivocom
Wg1608 4g5g Gigabit Router With Dual Band Gigabit 5g Lte Router With M.2 Key B Slot For M.2 5g Or 4g Lte-a Em12-g Em7455 Modem - Routers - AliExpress
5G LTE Industrial M.2(NGFF) to USB3.0 Adapter W/NANO SIM Card Slot Compatible with 5G LTE Module Like Quectel RM500Q etc. Applicable for M2M & IoT Applications Like Raspberry Pi Industrial Router Set
The Things Industries partners with Deutsche Telekom IoT to combine the power of LoRaWAN® and LTE-M - The Things Industries (news)
AirLink LX60 LTE M/NB-IoT Dual Gigabit Ethernet and Serial Port
Sierra Wireless AirLink LX60 Integrated Broadband Router with LTE-M/NB-IOT (LPWA) Modem
Amazon.com: EXVIST 4G LTE M.2(NGFF) to Mini PCIe Adapter W/O SIM Card Slot for 4G/3G LTE Module Suitable for M2M & IoT Applications Like Raspberry Pi Industrial Router Video Surveillance etc. :