Garmin Accessory xdcr y-cable 12pin+8pin xdcrs to 12pin sounder. You can also use this Y-Cable to connect a GPSMAP 10x2xsv/12x2xsv chartplotter. This adapter cable allows the ECHOMAP Plus echoMAP CHIRP or GPSMAP 10x2xsv/12x2xsv to continue to display water depth from the in-hull transducer in instances when the transom mount transducer loses depth reading due to cavitation. Features/Specifications: Use this Y-Cable to connect a Garmin GT30 transom mount scanning transducer and a Garmin GT8HW-IH GT15M-IH Airmar P72 or Airmar P79 in-hull mount traditional transducer to a compatible ECHOMAP Plus echoMAP CHIRP chartplotter/sonar combo or a GPSMAP 10x2xsv/12x2xsv chartplotter Allows the ECHOMAP Plus echoMAP CHIRP or GPSMAP 10x2xsv/12x2xsv to continue to display water depth from the in-hull transducer in instances when the transom mount transducer loses depth reading due to cavitation For connecting 12-pin and 8-pin transducers to a 12-pin sounder Cable Color: Black Specifications for Garmin Y-cable Xdcr 12pin+8pin xdcrs to 12pin sounder: Manufacturer: Garmin Color: Black Additional Features: 12 pin transducer 8pin transducer 12pin sounder Features of Garmin Y-cable Xdcr 12pin+8pin xdcrs to 12pin sounder Use this Y-Cable to connect a Garmin GT30 transom mount scanning transducer and a Garmin GT8HW-IH GT15M-IH Airmar P72 or Airmar P79 in-hull mount traditional transducer to a compatible ECHOMAP Plus echoMAP CHIRP chartplotter/sonar combo or a GPSMAP 10x2xsv/12x2xsv chartplotter Allows the ECHOMAP Plus echoMAP CHIRP or GPSMAP 10x2xsv/12x2xsv to continue to display water depth from the in-hull transducer in instances when the transom mount transducer loses depth reading due to cavitation For connecting 12-pin and 8-pin transducers to a 12-pin sounder Package Contents: Garmin Y-cable Xdcr 12pin+8pin xdcrs to 12pin sounder Garmin 010-12445-33: Accessory xdcr y-cable 12pin+8pin xdcrs to 12pin sounder