Features

Supports 802.3at PoE standard with a high output power of 5V DC/4A
Built-in controllable brushless fan delivering 2.2 CFM for better heat dissipation
Fully isolated switched-mode power supply for better power efficiency
Compatible with Raspberry Pi 4B/3B

Description

The Raspberry Pi PoE HAT is an add-on board for Raspberry Pi computers with PoE pins, including Raspberry Pi 3B and Raspberry Pi 4. It is used to power Raspberry Pi via an Ethernet cable, provided that power-sourcing equipment is installed on the Ethernet network. It supports 802.3at PoE standard with high output power of 5V DC/4A and the built-in controllable brushless fan can deliver 2.2 CFM to cool the Raspberry Pi processor. It also features a fully isolated switched-mode power supply for better power efficiency.

Specifications

Specification	Details
Standard	IEEE 802.3at-2003 PoE
Input voltage	37–57 V DC, Class 4 device
Output power	5V DC/ 4A
Cooling	25 mm × 25 mm brushless fan delivering 2.2 CFM for processor cooling
Features	Fully isolated switched-mode power supply Fan control
Operating temperature	0 °C to 50 °C
Production lifetime	The Raspberry Pi PoE HAT will remain in production until at least January 2027
Compliance	For a full list of local and regional product approvals, please visit www.raspberrypi.org/compliance

Comparison Between PoE HAT and PoE HAT


Standards supported	802.3af	802.3af, 802.3at
Output voltage	5V	5V
Maximum output current	2.5A	4A
Maximum power	12.5W	20A
Fan	Yes	Yes
Current sense	No	Yes
Transformer design	Wire-wound	Planar
PCB	4 layers, 2oz copper	4 layers, 2oz copper
Compatible with	Raspberry Pi 3B , 4B	Raspberry Pi 3B , 4B