You can use the M2BU3S to convert 4G/5G wireless cards which M.2 B Key to the mPCIe connector of the Desktop/Laptop.
You can insert your M.2 card Key B (Socket 2 SSIC-base WWAN) such as 5G / 4G / LTE cards to this adapter then plug to mPCIe Slot and connect to USB port with cable.
Dual Standard SIM card Push & Push connector is provided.
You can insert the mPCIe such as 4G/LTE cards to UM31B, then plug to mPCIe slot and connect to USB3.0 port with cable.
Dual Standard SIM card connector is provided.