Review on GeeekPi Raspberry Pi DockerPi Power Board: Versatile Power Supply with Auto Cooling Fan, Safe Shutdown & Expansion Support for Raspberry Pi 4 Model B, 3B+, 2B/3B by Jon Bishop

Used to power/control the 3D printer server and enclosure. It controls my lights (12v), fans (12v) and relays (5v) with 12v 3a input. Also cools my rpi 3b+. Although it is a premium price, it has a voltage difference and offers enough power for small one-off applications. Please note that it still supplies 12V when plugged in and unplugged, only the gpio pins are behind the power button. The power button "works" without drivers, but it is considered a hard shutdown if only used to turn off your rpi. The drivers solve this problem and send a shutdown command when the power button is pressed to shutdown.