The GT54 Ultra High-Definition All-In-One transducer provides image details so clear and precise, you can actually see fish hanging just off branches of submerged trees, brush and rocks. You can see size differences between bigger and smaller fish and even see individual fish swimming in bait balls. You get the highest resolution ClearVu and SideVu scanning sonar images available plus amazingly clear high wide CHIRP traditional sonar — all in one transducer. Ultra High-Definition scanning sonar provides extended range and depth performance. It shows you incredibly detailed images of fish and structure up to 200’ below your boat with 800 kHz ClearVu, while two SideVu sonar frequency settings (455/1200 kHz) provide options for extended range of up to 500’. It’s easy to install with included transom and trolling motor mounts so you can start fishing faster. This transducer is for use with GPSMAP 8400xsv/8600xsv chartplotter/sonar combos. The cable is 20' long and the transducer has 12 pins.