The Garmin GPSMAP 1643xsv Chartplotter takes command of the helm with a large upgraded IPS display and fast processing power that keeps charts, sonar, and engine data responsive while you track offshore structure for tuna, follow contour breaks for Great Lakes walleye, or set precise trolling passes for salmon. Its sleek design integrates cleanly into an existing Garmin marine system, creating a streamlined helm layout with clear sightlines and intuitive control. Advanced network connectivity links radar, autopilot, sonar modules, cameras, and additional displays into one coordinated marine electronics system, and expanded engine integration supports a wider range of compatible power systems for consolidated performance data. Digital switching and OneHelm integrations connect compatible third-party devices into a unified interface, giving you centralized control over onboard systems from a single display. Upgraded IPS display with powerful processing for clear, responsive helm control Seamless integration with Garmin marine systems and expanded engine compatibility Advanced network connectivity for radar, sonar, cameras, and multiple displays Digital switching and OneHelm integration for unified third-party device control Specifications: 16 in. display size Weight: 9.7 lbs. 11 1/10 x 8 9/10 x 3 1/5 in. Water rating: IPX7 Input: Touchscreen Display type: FHD, IPS Display resolution: 1920 x 1080 pixels Display size: 13.6 x 7.7 in.; 15.6 in. diagonal Mounting options: Bail, flush or flat (Garmin does not offer any hardware or accessories for a flat-mount installation, professional tools and knowledge is required.) Maps and Memory: Accepts 2 microSD cards (back of device) 5000 waypoints 50000 track points 50 saved tracks 100 navigation routes Sensors: GPS GLONASS Galileo Has built-in 10Hz receiver NMEA 2000 Compatible NMEA 0183 Compatible Supports WAAS Built-in maps: Built-in Auto Guidance+ Garmin Navionics+ Inland & Coastal Tide Tables Optional map support: Garmin Navionics+ Garmin Navionics Vision+ TOPO 100K Standard Mapping Garmin Quickdraw Contours Raster chart support Chartplotter features: Smart Mode compatible AIS DSC Supports Fusion-Link compatible radios GSD Black Box Sonar Support GCV Black Box Sonar Support ActiveCaptain compatible GRID (Garmin Remote Input Device) compatible Wireless Remote compatible Sailing features Spoken audio alerts OneHelm support Electrical features: Power input: 10 to 32 Vdc Typical current draw at 12 Vdc: 3.61 A Maximum current draw at 12 Vdc: 6.07 A Maximum power usage at 10 Vdc: 74.75 W Sonar features: Power output: 1 kW Traditional sonar (dual frequency/beam): built-in (single channel CHIRP, 50/70/83/200 kHz, L, M, H CHIRP) SideVAoe: Built-in 260/455/800/1000/1200 kHz ClearVAoe: Built-in 260/455/800/1000/1200 kHz Panoptix sonar LiveScope Connections: 1 NMEA 2000 ports 1 NMEA 0183 Input (Rx) Ports 1 NMEA 0183 output (Tx) ports Video input ports: 1 (BNC composite) Video output ports: 1 HDMI 1 J1939 ports 2 Garmin Marine Network Ports 1 12-pin transducer ports USB ports Bluetooth pairing ANT (Connectivity) Garmin Wi-Fi network (local connection) In the box: GPSMAP 1643xsv chartplotter MicroSD card preinstalled 8-pin transducer to 12-pin sounder adapter cable Power cable Flush mount kit with gasket Protective cover Trim piece snap covers Backbone/drop cable (2 meters) and T-connector for the NMEA 2000 network Documentation Manufacturer's one-year warranty