Arduino Ethernet Shield with PoE Module | Sparkfun DEV-11230 | Core Electronics Australia
How to Build Your own Raspberry Pi PoE HAT
Wiznet W5500 - simple passive PoE - General Electronics - Arduino Forum
power supply - Easiest and Best PoE Ethernet Chip/Micro/Design for DIY Interface with Custom Arduino Board (AVR Solution) - Electrical Engineering Stack Exchange
Arduino Ethernet with PoE | Sparkfun DEV-11361 | Core Electronics Australia
Robotdyn - W5500 Nano V3 Ethernet Network Shield With Active / Passive Poe - Module For Use With Arduino Nano - Integrated Circuits - AliExpress