This board simplifies connecting wires to the Raspberry Pi GPIO, ensuring accuracy with ease. As a licensed adaptation of the Pi GPIO Reference Board, it features grouped pins for I2C, IO, UART, SPI, and power.Specifications: * Ultra-thin at 0.8mm, impossible to misplace. * Compatible with Raspberry Pi Model B+, Pi 2, and Pi 3. * Not compatible with Raspberry Pi Model B; alternative available. Usage: * Fits effortlessly onto the 2x20 GPIO header. * Enables seamless connection with premium jumper wires. This practical accessory doubles as a keychain, perfect for those who appreciate both utility and portability. https://elecena.pl/product/29469692/adafruit-gpio-reference-card-for-raspberry-pi-model-b-pi-2-pi-3 2025-11-01 https://elecena.pl/product/29469692/adafruit-gpio-reference-card-for-raspberry-pi-model-b-pi-2-pi-3 2025-12-19 https://elecena.pl/product/29469692/adafruit-gpio-reference-card-for-raspberry-pi-model-b-pi-2-pi-3 2026-01-23 https://elecena.pl/product/29469692/adafruit-gpio-reference-card-for-raspberry-pi-model-b-pi-2-pi-3 2026-01-29 https://elecena.pl/product/29469692/adafruit-gpio-reference-card-for-raspberry-pi-model-b-pi-2-pi-3 2026-04-08 https://elecena.pl/product/29469692/adafruit-gpio-reference-card-for-raspberry-pi-model-b-pi-2-pi-3 2026-06-27 https://elecena.pl/product/29469692/adafruit-gpio-reference-card-for-raspberry-pi-model-b-pi-2-pi-3 2026-07-01