This 2x20 flat ribbon-cable fits the GPIO headers on the Raspberry Pi 3, 2, and B+ so you can easily connect to the low-level peripherals and get hacking! This cable has 0.1"-spaced connectors and is keyed for polarity. The length of the cable is approximately 20 cm.
It fits Pi’s GPIO (general purpose input/output) which contains 40 sockets perfectly. You can send and receive high/low, 3v/5v and I2C/SPI data using the pins.
Note : The pictures is only for reference. Package includes only GPIO cable.