Garmin BlueNet 20 Switch [010-02612-00] Entertainment | Speakers - Tower/Soundbars AS EC QDE may be

AS EC QDE may be required with some Humminbird models

With its built-in GPS receiver

three rigid aluminum rod legs

VFDB4 MANL 4 Position Distribution Block with Cover

Garmin BlueNet 20 Switch [010-02612-00] Entertainment | Speakers - Tower/Soundbars AS EC QDE may beBlueNet 20 Switch Increase the number of available network ports in a Garmin BlueNet network. Once youve used all the ports on your compatible chartplotter just add a Garmin BlueNet 20 switch to the setup and keep constructing your expansive high speed network. In the Box: Garmin BlueNet 20 Switch Power cable Mounting hardware Garmin BlueNet network cable (2 meters) Documentation