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.
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