2x20 Flat Cable, 14 cm, female-female
USB-I2C/SPI/GPIO adapter has I2C lines and most of the GPIOs available at J3 40-pin connector. With IDC-40-14FF cable you can connect these lines to your hardware. The connector is 14 cm long and has a dual-row 40 pin connector at each side. These connectors mate with standard 0.100" (2.54mm) pin header.