Garmin Power Data Sonar Cable f/720, 720s, 740, & 740s

The Garmin Power Data Sonar Cable f/720, 720s, 740, & 740s is an essential connectivity component for serious anglers and boaters relying on Garmin's trusted GPSMAP marine electronics. After years on the water, you know that reliable power and data transmission between your chartplotter and sonar transducer can mean the difference between a productive day and a frustrating one. This threaded 19-pin connector cable delivers the robust connection your fish-finding system demands, eliminating dropped signals and intermittent sensor faults that plague inferior aftermarket alternatives.

Built with marine-grade shielding and precision-engineered threading, the Garmin Power Data Sonar Cable integrates power delivery, GPS data, and sonar imaging through a single compact connection. The 19-pin architecture ensures secure, corrosion-resistant engagement with your GPSMAP unit's connector ports, protecting against the salt spray, vibration, and moisture inherent to offshore and freshwater environments. Its compact design allows clean routing through tight helm spaces without kinks or strain damage that would compromise signal integrity over time.

This cable is purpose-built for the GPSMAP 720, 720s, 740, and 740s units—four of Garmin's most dependable mid-range chartplotters found in professional fishing vessels and weekend cruisers alike. Whether you're upgrading a replacement cable after years of service or installing a new sonar system, this OEM part guarantees compatibility without the guesswork of third-party approximations. Keep a spare aboard for remote fishing trips where a failed connection could strand you without navigation or depth data.