Laptop WWAN to USB

Function Description:
This laptop has a built-in 4G/5G network card to USB adapter for use with a built-in mouse receiver.
Precautions:
1. Pay attention to the soldering height of the USB female connector to avoid interference with the motherboard.
2. It uses 3.3V power supply; some receivers may not work properly. Testing showed that the Logitech Unifying receiver works normally with 3.3V, but the Bolt receiver is not recognized with 3.3V.
3. Some motherboards have unsoldered components, resulting in no 3.3V voltage output; jumper wires are required for power supply. Testing showed that the Fujitsu U939 works directly, but the Hasee K670DG4D1 has no power supply.
0.8mm
thick immersion gold plate, hand-polished and chamfered.
Revision Notes:
None.
Attachments:
A simple casing was made for easy fixation. Acknowledgements:
The
design process referenced the schematic diagram of the LTE peripherals in the Hasee K670DG4D1 (Blue Sky W650KKKJ1).