This preloaded, offshore chartplotter combines the power of networking with brilliant color and slim-line design. The GPSMAP 4212 has preloaded BlueChart® g2 maps of the U.S. coast and displays them on a whopping 12.1" XGA display with crisp, video-quality resolution. By connecting to the Garmin Marine Network, you can add sonar, radar and weather. For even more enhanced features, you can add the optional Bluechart g2 Vision card. View Detailed Graphics and Video The 4212 features highly-detailed BlueChart g2 marine cartography of the coastal United States, including Alaska, Hawaii and the Bahamas. This data provides detailed coastlines, shaded depth contours, navaids, port plans, wrecks, restricted areas and tide and current information. For other areas, the 4212 has a worldwide basemap with high-quality satellite images in place of more traditional maps. With the SD card slot, you can add additional maps without having to connect to a computer. The 4212's high-speed processor draws maps quickly , and its simple intuitive interface makes navigating easy. To keep tabs on your engine room or other area of your boat, you can also connect a live video feed with the 4212's video input and output options. Add Extras with BlueChart g2 Vision With the optional BlueChart g2 Vision SD card, you can add a whole new dimension of exceptional features to your chartplotter.  3D mariner's eye view or fish eye view provides you with a 3-dimensional perspective of map information, both above the waterline and below it.  High-resolution satellite images and aerial photographs help you orient yourself in unfamiliar areas.  Auto guidance technology searches through all relevant charts to create a route you can actually follow - one that avoids obstacles, shallow water, buoys and other obstructions.  Connect to the Garmin Marine Network The 4212 connects easily to the high-speed Garmin Marine Network, so you can interface with additional MFDs and add remote sensors. Once connected, you can share information between the 4212 and other chartplotters on your boat. You can also add high-powered radar, sonar and XM satellite weather and radio to your system. Physical & Performance:  Unit dimensions, WxHxD: 14.8" x 9.5" x 4.6" (37.6 x 24.1 x 11.7 cm)  Display size, WxH: 9.7" x 7.3", 12.1 " diagonal (24.6 x 18.5 cm, 30.7 cm diagonal)  Display resolution, WxH: 1024 x 768 pixels  Display type: XGA display  Weight: 10.0 lb (4.5 kg)  Battery: none  Battery life: none  Waterproof: yes (IPX7)  Antenna: external  NMEA output: NMEA 0183, NMEA 2000  RoHS version available: no  Maps & Memory:  Basemap: yes  Preloaded maps: yes  Ability to add maps: yes  Built-in memory: none (cannot load maps to internal memory)  Accepts data cards: SD card slot  Waypoints: 1,500  Routes: 20  Track log: 10,000 points; 20 saved tracks  Features:  Garmin radar compatible: yes  Garmin sonar compatible: yes  CANet™ compatible: no  Garmin Marine Network™ compatible: yes  Supports AIS (tracks target ships' position): yes  Supports DSC (displays position data from DSC capable VHF radio): yes  Audible alarms: yes  Tide tables: yes  Hunt/fish calendar: no  Sun and moon information: yes  3D map view: yes (with optional BlueChart g2 Vision card)  Auto Guidance: yes (with optional BlueChart g2 Vision card)  Automatic routing (turn by turn routing on roads): no  XM WX Weather & Radio for U.S. compatible: yes  Voice prompts: no  Remote control: no  Headphone jack/audio line-out: no  Audio/video input/output: yes  Portable: no  Automotive/motorcycle-friendly: no