Power over Ethernet (PoE) is an innovative networking technology that allows electrical power and data to be transmitted simultaneously over standard Ethernet cabling. This eliminates the need for separate power supplies and outlets for devices such as wireless access points, IP cameras, and VoIP phones. PoE simplifies installation and reduces costs by using existing network infrastructure to provide both power and data connectivity. It is widely used in smart home applications and business environments, enhancing the flexibility and scalability of networked devices.