Owner's Manual
Page 97
... a serial port or USB connector cable. Refer to the appropriate interface format. USB drivers, required for downloading of the GPSmap 60CS and insert the smaller connector on the cable into the matching port. 3. You can also save routes, waypoints, and tracks from Garmin MapSource Map Data CDs. Connection to a Computer Universal Serial Bus (USB) Port...
... a serial port or USB connector cable. Refer to the appropriate interface format. USB drivers, required for downloading of the GPSmap 60CS and insert the smaller connector on the cable into the matching port. 3. You can also save routes, waypoints, and tracks from Garmin MapSource Map Data CDs. Connection to a Computer Universal Serial Bus (USB) Port...