This PoE HAT (F) is an 802.3af/at-compliant Power Over Ethernet HAT for the Raspberry Pi 5.
The PoE HAT is used to power your Raspberry Pi 5 with an Ethernet cable when the appropriate Power over Ethernet equipment is present in your Ethernet network. This HAT also has an adjustable fan to cool the processor of the Raspberry Pi 5, and also comes with a large heatsink which is placed under the HAT on the processor of your Raspberry Pi 5, and secured by two screws.
IMPORTANT: Absolutely do not connect a power supply when the PoE-HAT is mounted on your Pi, this will cause overvoltage which will cause the HAT to fail!