With the Structure Scan package will come a 15ft. ethernet cable. YOu will only need one more 6ft. cable which you can use for your console unit to have a fully networked boat. Both HDS units will share GPS coordinates, sonar, temp and Structure Scan imaging. Give me a call if you would like to discuss what all the different options are and how Humminbird compares to Lowrance. I sell both and can give you some good "insight"

Brian