The difference is in the small tab only. Don't care about the colors. You can plug any servo into the Futaba one, whereas you can't plug a Futaba servo into a JR female plug, unless you cut the tab. Remebmer that it is nearly the other way around when you plug it to the RX.
The futaba style has an extra 'Tang' on it, so when you plug it into a Futaba receiver you can not plug it in the wron way around. You just cut the 'Tang' off with a knife to then fit it into a JR/Spectrum receiver. oh yeah and the colour of the wires!
1 thumbs up!
Otima para quem so' quer uma pequena extensao para ligar aileron (ou outra coisa)