Provides fully isolated switched-mode power supply (SMPS)
IEEE 802.3af-compliant
Onboard high speed active cooling fan, better heat dissipation
The Waveshare PoE HAT (D) for Raspberry Pi 3B+/4B, 802.3af Compliant is an 802.3af-compliant Power Over Ethernet accessory for the Raspberry Pi 3B+/4B.
By using this small HAT and some proper 802.3af-compliant power sourcing equipment, it is possible to provide both network connection and power supply for your Raspberry Pi in only one Ethernet cable.
Note: Raspberry Pi, official cases, and PoE equipment are NOT included.