This is a 12" servo cable. This comes in very handy when your servo is further away from the controller than the wire on the servo allows. Female connector on one end goes to controller and the female connector on the other mates with male pins commonly found on a controller board (such as a UAV controller or the ArduPilot). This cable does not easily connect to servos but connects great with receivers. Wire can also be used as a simple 0.1" jumper cable.
Note: The plastic shrouds come pre-installed on this servo cable. Though it is difficult, they can be removed with a little effort.