PoE HAT (C)

PoE HAT (C)

PoE HAT (C) Output

PoE HAT (C) Fan

PoE HAT (C) Stackable Expansion

Overview

The PoE HAT (C) is a Power over Ethernet (PoE+) expansion board designed specifically for Raspberry Pi 3B+ and 4B . When used with 802.3af/at compliant power sourcing equipment (such as PoE switches or routers), it delivers both network connectivity and power supply through a single Ethernet cable, eliminating the need for an additional power adapter and simplifying cabling for IoT, cluster, and industrial deployments.

Features

• Based on standard Raspberry Pi 40-pin GPIO interface, compatible with Raspberry Pi 3B+/4B; stackable pass-through design supports mounting additional HATs
• Supports PoE power over Ethernet, compliant with IEEE 802.3af/at PoE/PoE+ network standards
• Adopts fully isolated switch mode power supply (SMPS)
• Onboard original MP8676 buck chip, providing up to 4.5A total output for Raspberry Pi mainboard and USB-A port
• Onboard USB Type-A interface: ensures stable power supply for Raspberry Pi while supplying power for additional external devices, with 5V 4A maximum output (power only, no data transmission)
• Onboard 2-pin 12V header with 12V 2A maximum output (2.54mm Dupont)
• Equipped with high-speed active cooling fan for better heat dissipation (Fan switch: EN for auto running on powerup, DIS for disabling the fan)
• Please note: 25W maximum combined output power for 12V pin header and 5V USB-A port

Technical Specification

POE input voltage	37V ~ 57V DC input
Raspberry Pi mainboard output	Up to 4.5A (via MP8676 buck chip)
POE-USB Type A output	5V 4A (MAX)
POE-Pin header output	12V 2A (MAX)
Total combined peripheral output power	25W MAX (12V pin header + 5V USB-A port)
Network standard	Support IEEE 802.3af/at PoE/PoE+
Product size	56.5 × 65mm
Cooling	Active cooling fan with EN/DIS control switch

Examples

Hardware connection You need to connect the PoE HAT to Raspberry Pi as picture:

Heat sink Heat sink installation:

Dimensions & Package Contents

• 1 × PoE HAT (C)
• 4 × Brass standoffs
• 4 × Mounting screws
• 4 × Nuts

FAQ

Q1:Can USB devices be connected to the USB interface on the POE HAT?

A: No, the USB interface on the POE HAT can only output power and has no USB function.

Q2: What is the part number of the matching connector for the 12V plug on the PoE HAT C? Do you sell a cable suitable for connecting to a nearby product?

A: It's 2.54mm Dupont wire.