Features: Power over Ethernet (PoE) expansion board suitable for RPi 5, supporting IEEE802.3af/at networking standard. Suitable for use with PoE routers or switches that support the lEEE802.3af/at networking standard, for RPi can be connected to the internet and powered with just one Ethernet cable. Based on for RPi 40PIN GPIO interfaces, suitable for RPI5. Supports PoE Ethernet power supply and IEEE802.3af/at PoE networking standard. Adopting fully isolated switching modes power supply, onboards high-speed active cooling fan, and equipped with metal cooling fins to accelerate heat dissipation. Specifications: Item: PoE Expansion Board For PRI5 Support：IEEE802.3af/at Connection: 40PIN GPIO Size:approx 70X56.5MM/2.76x2.22in Package Includes: 1PC PoE Expansion Board note: Please allow 0-1cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you