These add a station kits are available with or without trim and come in single engine or dual engine configurations. With the ability to control up to 4 engines from up to 4 different stations, the PowerA Mark II™ is a modular and flexible system with simple to install components.(1)42011T - Control without trim (Item 1) (1) 71021K - 33' Network Cable (#2 ) ^Includes:Control Unit33' Network Cable