Power Over Ethernet ControllersPower over Ethernet (PoE) controllers are integrated circuits (ICs) that are used to control the delivery of power over an Ethernet network. PoE allows electrical power to be transmitted over standard Ethernet cables, along with data, to devices such as IP cameras, wireless access points, and VoIP phones. PoE controllers are used to manage the power that is delivered to these devices, ensuring that they receive the correct amount of power and that the power is delivered safely and efficiently. PoE controllers are commonly found in networking equipment, such as switches and routers, that support PoE technology.