Updates & Downloads

GSD 21 Remote Sounder

Bundle

  • Chartplotters Update with Garmin Card, Ver. 2010.1026, as of Oct 26, 2010, Download
  • Chartplotters Update with SD card, Ver. 2014.0306, as of Mar 06, 2014, Download
  • Garmin Marine Network Update with Garmin Card, Ver. 2013.1125, as of Nov 25, 2013, Download
  • Garmin Marine Network Update with SD Card, Ver. 2014.0306, as of Mar 06, 2014, Download