Datasheet

Used to make embedded computer projects on the Raspberry Pi® Model
B, the Pi Cobbler from Adafruit, which can break out all the power,
GPIO, I2C and SPI pins from the 26 pin header onto a solderless
breadboard. This set will make "cobbling together" prototypes with the
Pi super easy. Designed for use with Raspberry Pi Model B AND Model A,
both revisions. This will not work with the Raspberry Pi 2 or Model A+
or B+.
The Pi Cobbler mini kit comes with a fully assembled PCB with socket
and headers as well as a 26 pin ribbon cable. No soldering
required! The cable plugs between the Pi computer and the Cobbler
breakout. The Cobbler can plug into any solderless breadboard (or
even a prototyping board like the PermaProto). The Cobbler PCB has all
the pins labelled nicely so you can go forth and build circuits without
keeping a pin-out printout at your desk.
The Adafruit Pi Cobbler is compatible with Model A and Model B both
versions 1 and 2 of the Raspberry Pi Computer. This Cobbler is not
compatible with the Model B+ unless you have a GPIO downgrade cable.
This kit contains a 26 pin ribbon cable (in Black) and assembled
Cobbler.