This is the Heavy Duty 30" Servo Extension with a JR/Hitec/Z Connector from Electronic Model Systems. FEATURES: Installs between the receiver and the servo to make the wire longer INCLUDES: One 30" (76cm) Heavy Duty Servo Extension with Hitec/JR/Z Connectors SPECS: Wire Color Codes- Brown: negative Red: positive Orange: signal cnh 9/30/08 ir/jxs