Amazon.com: Garmin Power Cable - 8-Pin f/echoMAP™ Series & GPSMAP Series : Electronics
For Garmin GPSMAP 721 721XS Chartplotter LCD Touchscreen repair replacement parts - AliExpress
Garmin GPSMAP 721xs without Transducer
NavPod SystemPod Pre-Cut for Garmin GPSMAP 7407/7407xsv/7607/7607xsv/720/721/740/740s/741/721xs/ echoMAP 70s/70dv on the right *AND* extra space on the left for 12" wide guard - Trionics