The Raspberry Pi Foundation has just announced the Raspberry Pi PoE+ HAT compliant with 802.3at (aka PoE+) and 802.3af standards and support for up to 25.5 Watts input.
It will replace the Raspberry Pi PoE HAT introduced in 2018 which was limited to 802.3af standard with a maximum of 15.4 Watts input and will become available around mid-June for $20 plus taxes and shipping.
Raspberry Pi PoE+ HAT specifications vs PoE HAT.
| Features | Raspberry Pi PoE+ HAT | Raspberry Pi PoE HAT |
|---|---|---|
| Standard | IEEE 802.3at & 802.3af | IEEE 802.3af |
| Device Class | 4 | 2 |
| Power Supply | Fully isolated switched mode power supply |
|
| Input Voltage | 37-57V DC |
|
| Output Voltage | 5VDC |
|
| Max output current | 5A | 2.5A |
| Max output power | 25.5W | 15.4W |
| Cooling fan | Yes |
|
| Current Sense | Yes | No |
| Transformer | Planar | Wire wound |
| Compatible boards | Raspberry Pi 4B, 3B+, CM4IO board |
|
| Launch date | 24th of May 2021 | August 2018 |
Besides supporting 802.3at standard with a higher current/more power, the new PoE+ HAT also adds a current sensor and relies on a planar transformer instead of a wire wound transformer with the former being more compact and efficient.
The brushless fan is controlled by I2C and helps the processor on the Raspberry Pi 3/4. You may need the latest version of the Raspberry Pi OS for the new PoE+ HAT to work properly.
While the Raspberry Pi PoE+ HAT is officially introduced today, it should only be in stock around mid of June 2021, and you should soon be able to pre-order on sites like Cytron, RS Components, Seeed Studio, and others.
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.
Support CNX Software! Donate via cryptocurrencies, become a Patron on Patreon, or purchase goods on Amazon or Aliexpress
‘Bedside’ should better read ‘besides’ and I believe you confused which product uses planar vs. wire-wound.
Typo corrected. I was provided with the wrong info about the transformer. Updated as well.
Note that Waveshare also recently introduced new RPi PoE hats, including one which supports 802.3at (PoE+): https://www.waveshare.com/poe-hat-c.htm
I like that the headers are still available.
Also has 5V USB-A & 2 Pin 12V Header Outputs for powering additional devices up to 25W total.
They’re going to shove that in an enclosed case with no heatsink and no airflow. What could go wrong? Raspberry Pi hardware “engineering”.