The Raspberry Pi 5 PD Power expansion board is designed to enhance the functionality of the Raspberry Pi 5 by providing Power Delivery (PD) capabilities. This expansion board supports an Always-ON switch, enabling automatic startup of the Raspberry Pi upon power restoration. Additionally, it offers the convenience of manual power control through a push-button mechanism. Always-ON Switch --- Default State:Disabled; Requires manual activation by pressing the PowerON button for power supply during each startup. Automatic Startup --- Supports automatic startup of the Raspberry Pi upon power restoration, enhancing user convenience. Manual Power Control --- Long-press the PowerON switch for shutdown when the Raspberry Pi is in a powered-on state. Versatile Power Management --- Flexibility in choosing power input sources and output options for diverse applications. GeeekPi PD Power Expansion Board for Raspberry Pi 5 8GB 4GB