This general purpose input/output (GPIO) ribbon cable connects add-on PCB board into Raspberry Pi 40-pin port. It is compatible with Raspberry Pi Zero, Pi Zero W, Raspberry Pi 1 Model A+/B+, Raspberry Pi 2 Model B, Raspberry Pi 3 Model B, and Raspberry Pi 3 Model B+. (Connectors: 40-Pin Female to Female; Length: 4-Inch; Color: Rainbow)