【PoE HAT For Raspberry Pi 4B/3B+】Standard Raspberry Pi 40PIN GPIO header, supports Raspberry Pi 3B+/4B, allows Power Over Ethernet HAT connecting other HATs. 【Power Over Ethernet】PoE (Power Over Ethernet) capability, IEEE 802.3af/at-compliant power sourcing equipments, providing both network connection and power supply for your Raspberry Pi in one Ethernet cable. 【PoE HAT Isolated】Fully isolated switched-mode power supply (SMPS) 【5V USB-A & 12V Header Outputs】5V USB-A provides up to 4A output (MAX 25W for 12V+5V total output power), While providing stable power for the Raspberry Pi, there's also a USB-A port for powering extra external device.