Amazon.com: EXVIST 4G LTE Industrial M.2(NGFF) to USB3.0 Adapter W/Nano SIM Card Slot Work with 4G LTE Module Like Quectel EM05 EM06 etc. Applicable for M2M & IoT Applications Like Raspberry Pi
Use M2 adaptor with dual SIM card slots with LTE modem Cat 6 - YouTube
4G LTE Internal Modem Card MDG200-M2 - Protectli EU
Amazon.com: NGFF M.2 to USB3.0 Adapter, M.2 USB 3.0 Adapter with Dual SIM Card Slot, LTE Modem with Antennas Screws for LTE/4G/5G Module, Supports Type 3042/3052 M.2 Key B Card : Electronics
5G 4G LTE Modem Module USB 3.0 Connector To NGFF M.2 Key-B Wireless Adapter Card 1 SIM Slot With 4 Antenna & RPM4500 Fan - AliExpress
USB to M.2 Key B 4G 5G Modem Adapter with Dual SIM Card Slots - The Wireless Haven