Black Box Modules

GCV™ 20 Ultra HD Scanning Sonar Black BoxAdd Ultra High-Definition Scanning Sonar to Your Compatible ChartplotterThe easy-to-install, networkable GCV 20 sonar black box allows you to redefine clarity and detail. Add any of the 3 GT34UHD transducer models...

GCV™ 20 Ultra HD Scanning Sonar Black Box with GT34UHD-TM Ultra HD Transom Mount TransducerAdd Ultra High-Definition Scanning Sonar to Your Compatible ChartplotterThe easy-to-install, networkable GCV 20 sonar black box allows you to redefine clarity and...

GXM 54 Satellite Weather/Radio AntennaAdd SiriusXM® Weather and Radio Directly on Your Chartplotter.Features:See detailed weather information¹ directly on your compatible Garmin chartplotter for increased situational awarenessExperience high-quality...