Comes with two units both transducers comes with a transducer shield mount for the trolling motor. 4 lakemaster chips two are for Great lakes and two are for Great plains. Both units are still on my boat I will be taking off this weekend both are in working order. There is some damage to the front transducer the down imaging transducer but it doesn't affect how it works. Down imaging unit was just replaced by hummingbird last year. I also have the ethernet box included in this package. And all the ethernet cords you will need.