A Power Over Ethernet (PoE) expansion board suitable for 5, supporting the IEEE 802.3af/at network standard. Suitable for use with PoE routers or switches that support IEEE 802.3af/at network standards, for can be connected to the internet and powered with just one Ethernet cable. Based on for 40PIN GPIO interface, suitable for 5. Supports PoE Ethernet power supply and IEEE 802.3af/at PoE network standard. Adopting fully isolated switch mode power supply (SMPS). High speed active cooling fan on board, equipped with metal cooling fins, accelerate heat dissipation together. PoE power input:37V-57V DC input Power output: GPIO pin:5V 4.5A (MAX) 2P pin:12V 2A (MAX) Network standard:Supports IEEE 802.3af/at PoE Applicable for 5 Based on for 40PIN GPIO interface design, with a pin at the top for easy access to other expansion boards (Only the module does not include the motherboard) Note:Due to different batches, there may be differences in product appearance and printed text, which will not affect use. Colour:Black Material:PCB+Metal Package Contents: 1 * PoE HAT(F) 1 * metal heat sink 1 * heat conductive patch (3PCS) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.