Waveshare Raspberry Pi PoE+ HAT Ethernet Expansion Board for Raspberry Pi 3B+4B Product Overview 1. The Raspberry Pi PoE+ HAT is a Power Over Ethernet (PoE+) accessory for the Raspberry Pi 3B+4B. Compared to its predecessor Raspberry Pi PoE HAT, it features better cooling effect, implementing the 802.3afat standard with 5V DC4A larger power output, providing enough power for both Raspberry Pi 3B+4B at max load and other peripherals at the same time. 2. By using this small HAT and some proper 802.3afat-compliant power sourcing equipments, it is possible to provide both network connection and power supply for your Raspberry Pi in only one Ethernet cable. Specification 1. PoE standard: 802.3afat 2. Input voltage: 37-57 V DC, Class 4 device 3. Output voltagecurrent: 5V DC4A 4. Current sense: Yes 5. Transformer design: Planar 6. Fan: Controllable brushless cooling fan, delivering 2.2 CFM for processor cooling 7. Fan size: 25 x 25mm 8. Feature: Fully isolated switched-mode power supply 9. Compatible with: Raspberry Pi 3B+4B Package List 1. Raspberry Pi PoE+ HAT x1 2. Standoffs pack x1