This cable allows you to make a powerful connection between your GPS and your PC. Create routes and waypoints on your PC and easily transfer them to your GPS unit. Also 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. Warning [https://productimageserver.com/prop65/6pt.png]WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov [http://P65Warnings.ca.gov].