1、ETHERNET POWER: Power over Ethernet (PoE) expansion board is used for Raspberry Pi 3 Model B+ 4B, supporting 803af networking standard 2、EASY TO CONNECT: A PoE router or switch that supports the 803af network standard, just one network cable can connect the for Raspberry Pi to achieve networking and power supply 3、SPECIFICALLY TAILORED FOR RASPBERRY PI: The for Raspberry Pi 4B 3B+ newly added a 4PIN POE power supply pin to provide a new power supply solution for the motherboard. For this reason, a POE power supply module was introduced to facilitate the for Raspberry Pi motherboard to be powered by Ethernet and networking 4、WITH COOLING FAN: This is a class 2 equipment, possess 37-57V DC, 5V/5A DC output. Come with brushless cooling fan to ensure high efficiency 5、WITH COMPLETE ACCESSORIES: Network expansion board set is equipped with standoff, nuts, screws, easy for you to install and convenient to used 1 x Module1 x Fan(random brand)3 x Standoff3 x Nut8 x Screw2 x Heat Sink Item Type: Network Expansion BoardMaterial: PCBAProduct Features: Support 802.3af PoE network standard37-57V DC, Class 2 equipmentOutput: 5V/ 2.5A DC Fan: Brushless cooling fan