The Humminbird AS USB Serial to USB Adapter Cable converts an AS PC2, which has a serial port connector, to a USB connection.

For Use With: Matrix 10, Matrix 12, Matrix 15, Matrix 17, Matrix 20, Matrix 25, Matrix 27, Matrix 35, Matrix 37, Matrix 47 3D, Matrix 55, Matrix 65, Matrix 77, Matrix 87, Matrix 97, AS PC2