What is the minimum voltage required on Wyze Cam V3 Pro?

According to the USB Specification Revision 2.0, the operating voltage of the USB ports must remain in the range of 4.75V to 5.25V

I run all my V3’s at 4.85-5.15 and have no issues at all using 12 volt to 5 volt regulators at the cameras instead of the Wyze USB adapters.

I bet you are using a “Long USB Extension Cord” with the voltage drop of 4,36

Better solution than a USB extension cord… <---- This link shows a non-voltage dropping solution.

Wyze cams power source with Battery backup <------ This link shows my setup with one power source for everything and battery backup