Amazon.com: Sim Card Modem USB to Mini pci Mini pcie USB Adapter Pci-e Sim Card Mini PCI-E sim Card to USB Adapter with SIM Card Slot for WWAN/LTE : Electronics
Embedded Works - Telit Cinterion Starter Kit 5G/4G/LTE PCIe Data Card | L30960-N6902-A100
Pictured: Intel and Qualcomm to offer 5G Modules for M.2 Slots
1set High Gain 5dbi 5g Antenna Omnidirectional With Sma To Ipex 4 Pigtail Used For Rm500q-gl Simcom Sim8200ea-m2 5g Module - Iot Accessories - AliExpress
5G Cellular Modem M.2 Adapter for Mini-PCIe Slots on SBCs - Gateworks Corporation - Single Board Computers
U0403A (mini card Rev 2.1 4G / 5G module to USB 3.1 Adapter)