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Charge USB devices from your GPSMAP 8400 or 8600 series chartplotter with this 6-foot adapter cable. The water resistant and secure connection allows you to power an external device via USB, such as a phone or media player, from your Garmin chartplotter. You can also power your Chromecast or Roku – with a coupler and HDMI cable (sold separately – and then stream video wirelessly to your chartplotter.
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