This 6 inch servo "Y" harness has male and female "S" type (also called JR) connectors.
A "Y" harness is generally used to control two aileron servos with a single channel of the receiver. This Y harness is a good choice for small parklyers and indoor models where the lightest possible weight is desired. It works well with sub micro servos (about 9 gram) or smaller.
This harness will plug into most receivers, including Futaba, JR, Spektrum, GWS, Cirrus, Blue Bird, Blue Arrow, Corona, Berg and Hitec.
Futaba male servo connectors can be plugged into the female connector of this extension by shaving off the little plastic ridge of the Futaba male connector.
The wire is 32 guage, and colors are: Red = battery positive Brown = battery negative Orange = signal.