This
cable allows you to make a powerful connection between your GPS and your PC.
You can create routes and waypoints on your PC and transfer them to your GPS,
and also download map detail from MapSource CD-ROMs to compatible units. Keep
the firmware in your GPS up to date with downloads from Garmin's Updates and Downloads
pages.
Cable
features a RS232 serial port connector. Does
not provide wiring for external power. If you require connection
to a DC power source at the same time as connection to your PC
use the PC Combination
Cable (or the low voltage combination
cable for the GPS 12)
Can
be connected to USB port with USB to Serial
Cable Converter.