Features:

SMPS
Input: 12V 
Typical output: 20W (5V/4A)
Absolute output: 25W (5V/5A)
3CM quiet cooling fan
Remote control safe power (Require Driver)
Button control safe power (Require Driver)
Recommended to be stacked at the bottom
Can stack with other stack board
Independent of the mainboard hardware ( Safe power must develop by yourself)

Raspberry Pi One-Step Automated Install Script:
wget -qO- https://git.io/fj3b9 | sudo bash

★DockerPi power board is used to power the Raspberry Pi (or similar SBC) with a typical power of up to 20W (5V/4A) and can run up to 25W (5V/5A) with good heat dissipation. Wiki link: https://wiki.52pi.com/index.php/DockerPi_PowerBoard_SKU:_EP-0104#DockerPi_PowerBoard
★It also provides power to other DockerPi modules to protect the security of the power supply. It also provides a safe shutdown function, supports IR remote control switch, button control switch. One-Step Automated Install(Raspberry Pi)--wget -qO- https://git.io/fj3b9 ǀ sudo bash. Reboot your Raspberry Pi and finish installation.NOTE:The LED status is incorrect until the drive is installed successfully!
★It has 3*3cm quiet cooling fan, can effectively cool down. We recommend that install the power board on the bottom of the other DockerPi.
★It is recommended to connect 12V 2A or above power input and 12V power from 4-pin headers to other DockerPi, If other modules require 12V power. Note: DockerPi Power Board does not support hot plug.
★Official compatibility test. Support Raspberry Pi, Banana Pi M3, Orange Pi Zero. Other development boards can be compatible if they have I2C peripherals. Note: maybe need to change some software.

Packing List:

1 * Docker Pi Power Board for Raspberry Pi
1 * Remote controller
1 * Instructions
4 * M2.5x12+6 Copper stick
4 * M2.5x6 Nut
4 * M2.5x6 Half-round head screw