Description: This is an extending kit for Raspberry Pi 1B+/ 2B/ 3B, consisting of a T-type GPIO extension board and 40Pin ribbon flat cable, so you can easily connect it to external peripherals and do breadboard test. Features: Widely used for extending input and output port, compatible with for Raspberry Pi 1B+/ 2B/ 3B. 40 Pin GPIO cable ensure good contacts and suitability, meet your extending requirements. High quality flexible ribbon cable, copper core, rainbow looking, efficiently avoid from interference, safe and durable to use. T-type GPIO extension board for easy extension, can be applied to breadboard test. No additional installation drive required, easy to use. Specifications: Color: Shown as the pictures. Applicable Models: For Raspberry Pi 1B+/ 2B/ 3B Cable Core: Copper Core Cable Connector Type: 40 Pin Female to Female Cable Length: Approx. 20cm / 7.9in GPIO Extension Board Size: Approx. 74 x 59 x 20mm / 2.9 x 2.3 x 0.8in Package Size: 49g Package List: 1 x 40Pin Female to Female GPIO Cable 1 x T-Type GPIO Extension Board