Features: PoE HAT (Power over Ethernet HAT) (type C) forRaspberryPi 3B+/4B Standard forRaspberryPi 40PIN GPIO stackable head, which allows the connection of other HAT PoEs (Power over Ethernet), complies with IEEE802.3af/at 5V USB-A and 12V outputs. 5 V USB-A provides up to 4 A of output power (12 V Z5 V has a total output power of 25W). It can power other devices while providing stableperformance forRaspberryPi. On board MP8676 buckchip and original voltage buckchip. Provide up to 4.5 A output forRaspberryPi and USB-A ports. Integrated high-speed fan, Active cooling, better heat dissipation Specifications: Item:PoE HAT Board forRaspberryPi 3B+/4B Power Over Ethernet (C) Standard:IEEE802.3af/at Power: 5V Usb-A 12v Header Output Size:approx 65x49mm/2.56x1.93in Package Includes: 1 Set PoE HAT Board note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.