OTG Adapter Cable for GPSMAP® 8400/8600Charge USB devices from your GPSMAP® 8400 or 8600 series chartplotter with this 6-foot adapter cable. The waterproof 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.Compatible Devices:GPSMAP® 8400GPSMAP® 8600WARNING: 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.