Waveshare PoE HAT(E) for Raspberry Pi Ethernet Power over Expansion Board for Raspberry Pi 3B+/4B for IEEE 802.3Af 1PCS This is a Power over Ethernet (PoE) expansion board for Raspberry Pi 3B+/4B that supports the IEEE 802.3af network standard. If you already have a PoE router or switch that supports the IEEE 802.3af network standard, with this expansion board, you can connect the Raspberry Pi to the network and power supply with just one network cable. Suitable for Raspberry Pi 3B+/4B, can be used together with Raspberry Pi shell, does not take up more space Support PoE Power over Ethernet, support IEEE 802.3af PoE network standard Fully isolated switch mode power supply (SMPS). Adopting a more compact component layout scheme, the overall volume is smaller and the use is more flexible PoE power input: 37V ~57V DC input Power output: 5V 2.5A DC output Network Standard: Support IEEE 802.3af PoE Colour:blue Material:PCB Size:65 x 32MM Package Contents: 1 x Poe HAT Expansion Board