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Connecting a Serial Interface GPS to a USB port on a Windows Computer
If a Windows computer does not have a serial port, a third-party USB to Serial converter cable can be purchased. This will then add a virtual serial port to your PC.
Please be aware that most USB to Serial converter cables are not compatible with 64-bit Windows operating systems. There is no Mac compatibility.
Note: Garmin does not offer a USB to Serial converter cable online as all products that would require the cable have been discontinued.