This product is either discontinued or we cannot get that from suppliers.
Brand: Garmin, Model: 010-11969-00, Type: Mount, Colour: Black, Compatible: echoMAP 70dv/GPSMAP 751xs.
Mount any additional echoMAP or GPSMAP on your boat with this second mounting station. Also includes a wiring harness to power your compatible device and connect to an optional NMEA 0183 network.