Arduino Portenta X8 Power Tree is a block diagram that describes the power distribution and control system of the Arduino Portenta X8 board. The Portenta X8 is a powerhouse board merging the flexibility of Linux and real-time capabilities of the Arduino environment. Preloaded with a Yocto Linux OS, it boasts dual microprocessors: the NXP i.MX 8M Mini for Linux applications and the STM32H747XI dual Cortex-M7+M4 ARM MCU for Arduino tasks. Its container-based design ensures easy, secure deployment while offering full user control. With Arduino's partnership with Foundries, users can access a subscription service for enhanced features such as secure updates, fleet monitoring, and maintenance. Whether extending its functionalities with shields or customizing with reference designs, the Portenta X8 is set to revolutionize the Industrial IoT landscape.