This is a T-Cobbler breakout kit used for extending the GPIO interface on Raspberry Pi B+ to breadboard. It helps you to make the connections between Raspberry Pi and breadboard become simple.
Here is the breakout kit for Model B.
Corresponding Interface:
Pin1 - 3V3
Pin2 - 5V
Pin3 - SDA
Pin4 - 5V
Pin5 - SCL
Pin6 - GND
Pin7 - GPIO4
Pin8 - TXD
Pin9 - GND
Pin10 - RXD
Pin11 - GPIO17
Pin12 - GPIO18
Pin13 - GPIO27
Pin14 - GND
Pin15 - GPIO22
Pin16 - GPIO23
Pin17 - 3V3
Pin18 - GPIO24
Pin19 - SPIMOSI
Pin20 - GND
Pin21 - SPIMISO
Pin22 - GPIO25
Pin23 - SPISCLK
Pin24 - SPICS0
Pin25 - GND
Pin26 - SPICS1
Pin27 - EEDATA
Pin28 - EECLK
Pin29 - GPIO5
Pin30 - GND
Pin31 - GPIO6
Pin32 - GPIO12
Pin33 - GPIO13
Pin34 - GND
Pin35 - GPIO19
Pin36 - GPIO16
Pin37 - GPIO26
Pin38 - GPIO20
Pin39 - GND
Pin40 - GPIO21
Specification:
wire length:19cm
PCBA size:59*69*19mm
PCBA color:Black
Pin:40pin