How to Attach the PoE HAT to Raspberry Pi 3B+

Very easy

The Raspberry Pi PoE HAT is a handy add-on board that powers the Raspberry Pi 3 Model B+ using an Ethernet cable. In addition, it has a 25mm fan that provides cooling to the Pi and its CPU. 

In this guide, we will show you how to connect it to the Pi and a PoE-capable network router. Please note that the HAT will only work with PoE-capable network routers or switches, standard routers or switches will not work here

Parts Used in This Guide


Raspberry Pi 3 Model B+



Step 1  The parts

The full list of parts required are:

  • PoE HAT
  • Raspberry Pi 3B+
  • Four stand-offs
  • 8 screws
  • An ethernet cable
  • PoE-capable network router

First let's inspect the PoE HAT and some notable parts of it.

It has a mini 25mm fan attached to it,  four holes to mount it to the Pi with screws and stand-offs, a 2x20 GPIO female header, and a 4 pin surface mount connector. 

Step 2  Align stand-offs on Raspberry Pi

  • Now, carefully align the four stand-offs to the Raspberry Pi 3B+ as shown.
  • If you would like to add heat sinks to the Raspberry Pi, it will fit nicely even with the PoE HAT.

Step 3  Attach PoE HAT to Raspberry Pi

Next, carefully attach the PoE hat to the Raspberry Pi, and it should be :

  • Aligned with the 2X20 GPIO header
  • Aligned with the 2x2 header

Step 4  Attach screws to stand-offs

Next, use a screwdriver to attach four screws to the stand-offs.

Step 5  Turn Pi over and attach screws to stand-offs

  • Flip the Raspberry Pi to the back. 
  • Attach screws to the stand-offs on that side as well. This will keep it securely in place.
  • Insert microSD card into the microSD card slot

Step 6  Connect an ethernet cable

  • If you would like to add peripherals such as a wireless keyboard to the Pi, attach it to the USB port now.
  • Finally, connect one end of the ethernet cable to the ethernet port on the Raspberry Pi 3B+.
  • Connect the other end of the ethernet cable to your PoE-capable network router.

    Note: When disconnecting the PoE HAT from the Raspberry Pi, pull the 4-pin surface mount pair connector off gently and evenly. Do not pull one end of the connector off before the other.