This is a great 12-inch (300-mm) board-to-board cable for devices that have 0.1" 3-pin male header connectors, such as RC servo controllers, RC receivers and or motor controllers. It can also be a convenient way to connect various sensors to a robot controller.
This is a servo extension cable with “JR” style connectors on both ends, which makes it compatible with all servos. The cable has two female connectors that fit nicely with 0.1" male headers, but these connectors are often referred to as “male” in the RC hobby industry. The connectors on each end are the same as what is found on most servos: