Description: Keyestudio micro bit joystick breakout board is fully compatible with the official version. With functional testing, voltage and current testing, all our boards are fully qualified before selling. Adopting environmental-friendly components and production technology to ensure product safety, it has passed the United States FCC certification and the EU CE certification, authentically and validly. You can also connect external DC 4.75-12V to power for micro bit development board. This board not only breaks out all the digital and analog interface in the form of servo line order, but also adds I2C?serial port and SPI communication interfaces, very easy for sensor connection. Specification: Material: Plexiglass fiberboard Color: Black Yellow Size: approx. 6.5 x 5.1 x 2cm / 2.5 x 2.0 x 0.8inch Package Includes: 1 Piece Micro Sensor Breakout Board Note: Color maybe slightly different due to different monitor. The above size is measured by hand, please allow slightly difference. Thanks !