Item Type: for RPi Breakout Board <br>Material: PCB <br>Number of RJ45 Ports: 8 <br>Expansion Pin: 20pin x 2 <br>Applicable Models: for RPi 1A+ 1B+ 2B 3B 3B+ 3A+ 4B <br>RJ45 GPIO Interface. <br>Port 1: UART(RXD TXD) GPIO17 GPIO4 <br>Port 2: SPI(SCLK CE0 MISO MOSI) <br>Port 3: GPIO6 GPIO12 GPIO5 CE1 <br>Port 4: GPIO21 GPIO26 GPIO20 GPIO19 <br>Port 5: I2C(SDA, SCL) GPIO18 GPIO27 <br>Port 6: I2C(SDA, SCL) GPIO23 GPIO22 <br>Port 7: I2C(SDA, SCL) GPIO24 GPIO25 <br>Port 8: I2C(SDA, SCL) GPIO13 GPIO161、High Compatibility: Suitable for RPi 1A+ 1B+ 2B 3B 3B+ 3A+ 4B and many other 40pin for RPi models to meet different user needs. <br>2、Convenient Connections: Easily connect for RPi GPIOs and power supplies to peripheral devices via 8 RJ45 sockets, providing a full range of expansion capabilities for your for RPi. <br>3、Flexible Power Supply: Each RJ45 port supports independent selection of for RPi 5V 3.3V or blue terminal power supply to meet the power needs of external devices. <br>4、GPIO Pin Connection: Each of the 8 ports supports different interfaces such as UART, SPI, GPIO and I2C, making it easy for you to interact with more peripheral devices with for RPi. <br>5、Expansion Pin Design: Equipped with 2x20pin expansion pins, it is convenient for you to expand more peripherals of for RPi to meet more innovative and practical needs.1 x <br> <br>for&nbsp;RPi&nbsp;Breakout&nbsp;Board&nbsp;&nbsp;&nbsp;