This cable allows you to make a powerful connection between your GPS and your PC. Create routes and waypoints on your PC and transfer them to your GPS. Also it allows you to download map detail from MapSource CD-ROMs to compatible units. Cable features a USB connector. Does not provide wiring for external power.
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When I first purchased my Nuvi 255W I tried connecting to my PC using a USB cable I already had that was for another GPS receiver. I was able to charge the Nuvi but I could not get my PC to recognize it and do updates to the unit. After receiving this cable I had no problems at all connecting and updating my Nuvi. Guess it goes to show that not all USB cables are the same.
Cable works great, allowed me to add custom car icons on Nuvi 260. Just what you need if you want to modify or update your Garmin.
I bought this for my Nuvi 260 also and it works as advertised. I have also used this to connect my PSP to my computer and it does that well too.