The power of networking meets the brilliance of great design in this large-screen chartplotter, which serves as your all-in-one "nerve center" for the Garmin Marine Network. The GPSMAP 4012 has crisp, video-quality resolution on a large 12" (30.7 cm) XGA display as well as a worldwide, satellite-enhanced basemap. By connecting to the Garmin Marine Network, you can add sonar and radar. The 4012 features a worldwide basemap with high-quality satellite images in place of more traditional maps. And for more detail, you can add maps easily with the Sd card slot without having to connect to a computer. The 4012'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 also can connect a live video feed with the 4012's video input and output options