Raspberry Pi 40Pin GPIO Expansion Board Raspberry Pi 40Pin GPIO Expansion Board with Rainbow Ribbon Cable is suitable for the Raspberry Pi 3, 2 Model B, B , A & Zero accessories, T-type GPIO expansion board Cobbler Plus, convenient for you to connect an external GPIO, also applicable to the breadboard experiment. Categories: Communication, Connectors, Connectors & Cables, Converters, Instruments & Tools, Raspberry Pi Tags: GPIO, RASPBERRY PI