Power over Ethernet is a networking technology that allows both data and power to be passed through the same copper cabling. The advantages are many.
On the cost side, installation and reconfiguration of space are reduced because there is no need to install power outlets or run additional electrical cables too hard to reach areas.
The most common use case is the installation of remote IP security cameras in commercial applications. Other PoE applications and devices that support PoE include video-phones, speed dome cameras, wireless access points, point-of-sale systems, laptops, and digital signage.
Infographic by: versatek.com