Waveshare Raspberry Pi PoE+ HAT Compatible With Raspberry Pi 3B+/4B 802.3af/at Power-Sourcing Equipment Required

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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 802.3af/at standard with 5V DC/4A larger power output, providing enough power for both Raspberry Pi 3B+/4B at max load and other peripherals at the same time.
By using this small HAT and some proper 802.3af/at-compliant power sourcing equipments.
It is possible to provide both network connection and power supply for your Raspberry Pi in only one Ethernet cable.