ONE Female to female 4 conductor type Jumper cable We are not sure of all the applications but what you see is what you are buying. Good new surplus. Same spacing as DIP SIP etc (pc board in sample pict is not included, but shown to illustrate how it connects to many common computer boards) Similar to PWM fan connector except there is no key/guide so it can be plugged in either direction Gold plated connections twisted wires to reduce interference approx 18" long Good for breadboarding, Arduino, custom projects etc You can Cut in half and you will have two 9" female to wire sets for custom work, fans, front panel switches, sound cards, etc