This is a simple set of one male and female two pin polarised connector. Great for connecting/jumping from board to board or just about anything else. This is a 2-pin JST RCY connector typically used for low-voltage applications running 10A or less. They are commonly found in RC vehicles. These come in a bag of 1 male plug, 1 female plug, plus pins to connect them both. The pins crimp to your cable and are inserted into the housing.