-40 Pin T-Cobbler Adapter with 40 Pin GPIO Cable is compatible with Raspberry Pi 2, 3.

-All 40 pins GPIO pin breakout and labeled for easy prototyping.

-The function of the extension board is to lead out pins of the Raspberry Pi to breadboard by GPIO Extension Board to avoid GPIO damage caused by frequent plugging in or out.

-Great for beginners and advanced users.

-No soldering required!

-Length of Rainbow GPIO Cable: 20cm

This 40-pin GPIO Extension Board and GPIO cable can be plugged into Raspberry Pi 2 model B and 3 model B. as per following graph :

For your better understanding of every pins, we have drawn a table for you to understand relation between the Name printed in T board , BCM# and wiringPi#