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Main image of Power Over Ethernet HAT (B) for Raspberry Pi 3 Model B+ / Raspberry Pi 4 Model B, PoE HAT Board with 0.91" OLED and Cooling Fan, Support 802.3af PoE Network Power-Sourcing Equipment Required

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Power Over Ethernet HAT (B) for Raspberry Pi 3 Model B+ / Raspberry Pi 4 Model B, PoE HAT Board with 0.91" OLED and Cooling Fan, Support 802.3af PoE Network Power-Sourcing Equipment Required

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Power Over Ethernet HAT POE HAT (B) for Raspberry Pi 4B/3B+,Standard Raspberry Pi 40PIN GPIO Stackable Header, Allows Connecting Other HATs; Support 802.3af PoE Network,802.3af Power-Sourcing Equipment Required; Integrates PCF8574 IO expander for I2C bus, providing pin P0 for directly fan control, and more spare IO pins; 0.91" OLED, for monitoring processor temperature, IP address, and fan status in real-time; Onboard cooling fan, allows auto running on powerup OR programmable control, configured by switch; Cooling fan: Allows auto running on powerup OR programmable control, configured by switch. Automatically turn on/off depending on the Raspberry Pi processor temperature

Overview

Specs

Reviews

Features Standard Raspberry Pi 40PIN GPIO header, supports Raspberry Pi 3B+/4B PoE (Power Over Ethernet) capability, 802.3 af-compliant Fully isolated switched-mode power supply (SMPS) 0.91" OLED, for monitoring processor temperature, IP address, and fan status in real-time Onboard cooling fan, allows auto running on powerup OR programmable control, configured by switch Integrates PCF8574 IO expander for I2C bus, providing pin P0 for directly fan control, and more spare IO pins

Specifications

PoE power input: 37V ~ 57V DC in
OLED size: 0.91"
PoE power output: 5V 2.5A DC out
OLED pixels: 128x32
Network standard: 802.3 af
PoE OLED driver: 1306
OLED display color: white
Dimensions: 56.5 x 65mm
User Manual/Document: n9. cl/xg7ad Package Content PoE HAT (B) x1 Standoffs pack x1

Additional Information
First Listed on Newegg	July 13, 2026

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Return for refund within: 30 days
Return for replacement within: 90 days
This item is covered by NovaStar Tech Return Policy

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Item#: 9SIC75KM1B6586