PoE HAt compatible with MaticBox. As seen on the pictures you can add also a fan cooling.

Specification: Compliant IEEE802.3af PoE standard Support the IEEE 802.3af/802.3at the Power over Ethernet PoE Switch Support 48V~57V Passive Power Over Ethernet PoE Switch Support 48V~57V Passive Power Over Ethernet PoE injector Support Power sourcing equipment (PSE) Power Pin:support both 1/2(+/-),3/6(-/+) or 4/5(+),7/8(-) Isolation: 2.5kV Power Input:  DC38~57V Power Output: DC5V 2.5A Operation Temperatue:-10℃ ~ 75℃ Storage Temperature:-30℃ ~ 80℃