Power over Ethernet (PoE) can make your project wiring a breeze - instead of needing a wire for power and data, you can use one Ethernet cable for both! All you need is this handy PoE module, and access to the center-taps on your Ethernet-capable board. Attach the four input wires, and get regulated 5V 1.8A on the other side. Amazing! This version of the PoE module has a transformer in the center, that's the big chunky thing, so that there is no direct electrical connection between the 5V power/ground and Ethernet cables. This module works well with the Raspberry Pi 3 Model B+, which has the 4 wires on a header. As you can see in our photos, you just need some female-female jumper wires to get the Ethernet wires to the module, and then two wires to bring the 5V back to the header. Note that even though a 2.5A power supply is recommended for a Pi 3B+, that's only required if you attach a bunch of accessories (such as a 7" display!) 1.8A will cover a wide range of usages, as the current draw is around 0.7A max without extras. Not ideal for the Raspberry Pi 4 or 5 due to the limited current this module can provide. If you don't have access to those pins, but can power your board or computer with a micro USB cable, check out our 5V microUSB PoE Splitter. It's bigger and more expensive but really easy to use Great for older Raspberry Pi's (not the 3 B+), Feathers, etc) We also have an non-isolated version of this module, when you don't need electrical separation. Technical Details To use: * Connect pins 1 and 2 to Ethernet wires 4 and 5 * Connect pins 3 and 4 to Ethernet wires 7 and 8 * Pin labeled (-) is ground output * Pin labeled (+) is 5V out * Input Voltage range: 42 to 55 VDC (48V nominal) * Output Voltage range: 4.75 to 5.25V (5V nominal) * Output current: 1.8A nominal * Efficiency: 80% Appearance- * This may come with 4 or 6 pins soldered in. * Module Datasheet https://elecena.pl/product/22716125/5v-1-8a-isolated-output-poe-module-for-raspberry-pi-3-b 2023-03-07 https://elecena.pl/product/22716125/5v-1-8a-isolated-output-poe-module-for-raspberry-pi-3-b 2023-12-27 https://elecena.pl/product/22716125/5v-1-8a-isolated-output-poe-module-for-raspberry-pi-3-b 2024-09-19 https://elecena.pl/product/22716125/5v-1-8a-isolated-output-poe-module-for-raspberry-pi-3-b 2024-11-29 https://elecena.pl/product/22716125/5v-1-8a-isolated-output-poe-module-for-raspberry-pi-3-b 2024-11-30 https://elecena.pl/product/22716125/5v-1-8a-isolated-output-poe-module-for-raspberry-pi-3-b 2025-04-10 https://elecena.pl/product/22716125/5v-1-8a-isolated-output-poe-module-for-raspberry-pi-3-b 2025-08-05 https://elecena.pl/product/22716125/5v-1-8a-isolated-output-poe-module-for-raspberry-pi-3-b 2025-11-28 https://elecena.pl/product/22716125/5v-1-8a-isolated-output-poe-module-for-raspberry-pi-3-b 2025-11-29