https://www.garmin.com/iw-IL/garmin-technology/marine-technology/digital-vessel-integration/garmin-boat-switch-system/
Garmin Boat Switch System | Digital Vessel Technology
Garmin Boat Switch system enables digital switching of electrical functions from compatible chartplotters for simplified onboard management.
garmin boat switchsystemdigitalvesseltechnology
https://www.garmin.com/en-US/p/836667/pn/010-02735-00/
Garmin Boat Switch
garmin boatswitch