Raymarine c127 12.5-Inch Multi-Function Display/Fishfinder with Lighthouse US Coastal Charts Available with a convenient built-in HD digital sounder, capable of imaging fish and bottom Structure at depths to 3,000 feet Includes a standard built-in high sensitivity GPS receiver. The C127 has dual chart reader slots for Navionics charts on micro SD cards Networking Powerhouse with built-in Wi-Fi and Bluetooth wireless networking Wired networking including seatalk-hs, sea talk-ng, NMEA2000, NMEA 0183 and one composite video Input