What extra is needed(to use KO servo)?
 

Im looking at getting a digital servo for my new sedan and am interested in the PDS-2123 FET. And it is a 7.2 volt servo, when others are 6 volts. What is needed to run this in my electric sedan?

thanks

The servo comes with a blue wire that you either fits in an existing blue wire on your speed controller (some speed controllers have them pre-fitted), or that you have to solder on to your + battery wire.