Power over Ethernet (PoE) HAT for Raspberry Pi

Note: Since 8th Nov 2018, the PoE HAT is the latest stock that fixed the USB power issue. Please check the release from Raspberry Pi Foundation

It is finally here, the official PoE HAT for Raspberry Pi 4 Model B and  Raspberry Pi 3B+, you can power your Raspberry Pi just by using PoE compliance router, network switch or adapter, of course, the Ethernet cable must be connected. As you might have known, the power pins on RJ45 socket (Ethernet) are being extended out to header pins on Raspberry Pi 4 Model B and 3B+. But due to the board size, compatibility and cost, the PoE module is not built on the mainboard. Thus, this HAT is necessary to tab the power from the additional PoE power header pins and convert it to stable power for the Raspberry Pi.

Oh, did I mentioned? It is designed with full isolate Switched-Mode Power Supply (SMPS) which supports the PoE power input range of 37 to 57VDC and converts it into 5V, 2.5A (Max). On top of that, there is a brushless fan pointing at the processor which is controllable via I²C (40-pin GPIO). How awesome is that!

Note: By the way, you can only use it with Raspberry Pi 4 Model B (1G, 2G, 4G) and Raspberry Pi 3 B+, not 3, not Zero, please do take note on that.

Features and Spec:

• Power over Ethernet 802.3af compliant
• Class 2 device
• Fully isolate Switched-Mode Power Supply (SMPS)
• 37-57VDC Input Voltage
• 5V Output Voltage, 2.5A (max)
• 25mm x 25mm brushless fan for processor cooling
• Fan Control
• Plug-and-play compatibility with: (latest Raspbian)
  • Raspberry Pi 4 Model B 1GB
  • Raspberry Pi 4 Model B 2GB
  • Raspberry Pi 4 Model B 4GB
  • Raspberry Pi 3 Model B+

Packing List:

• Raspberry Pi PoE HAT
• Mechanical spacers and bolts

You will need:

• A Raspberry Pi Mainboard, either:
  • Raspberry Pi 4 Model B 1GB
  • Raspberry Pi 4 Model B 2GB
  • Raspberry Pi 4 Model B 4GB
  • Raspberry Pi 3 Model B+
• An Ethernet cable
• Power-sourcing equipment for an 802.3af Power over Ethernet network or PoE Injector/Adapter

Connecting your PoE HAT to the Raspberry Pi

• Before installing the PoE HAT, you must attach the supplied spacers in the four corners of the board
• Then connect the Raspberry Pi PoE HAT to the two 0.1” headers (40 + 4) that are fitted on the Raspberry Pi
• Once the PoE HAT board is connected, you can power the Raspberry Pi through its RJ45 network connector

Disconnecting your PoE HAT

• Take care when separating the HAT from the Pi
• Pull evenly so that it detaches from all the pins at the same rate; do not pull one end of the connector off before the other

Documents:

• Raspberry Pi PoE HAT official Product page
• Raspberry Pi PoE HAT Product Brief

Additional information
No modification to the main Raspberry Pi board is needed for this product to work. Please ensure that your Raspberry Pi’s software is up to date for all functionality to be available. The PoE HAT is fitted with a small fan that is controlled by the Raspberry Pi via I2C. The fan will turn on and off automatically depending on the temperature of the main processor on the Raspberry Pi.