Features: Brand new and high quality Unleash the full potential of your DIY projects with our upgraded robot expansion board for 4B/3B. Crafted from high quality materials, our versatile module ensures durability and stability for all your computer and office needs. Designed for both men and women, our expansion board caters to enthusiasts, hobbyists, and students of all ages. Take your projects to the next level with seamless integration using our reliable expansion board, perfect for various computer and office applications. Unleash your creativity and explore new possibilities with our advanced robot expansion board. Bring your ideas to life and elevateS your DIY experience! Specifications: Accessory Type: Extension Board Compatible With: for RPI 4B or 3B Working voltage: 5V-12V Interface: I2C Note: Please allow 0-1cm error due to manual measurement. make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you. Package includes: 1PC Robot Expansion Board