What does PoE (Power over Ethernet) allow?

Power over Ethernet (PoE) is a technology that allows network cables to carry electrical power along with data. This capability simplifies the infrastructure by enabling devices like IP cameras, Wi-Fi access points, and VoIP phones to receive power through the same Ethernet cable used for data transmission. As a result, the management of power supply becomes more efficient, reducing the need for separate power adapters and outlets near every device.

This technology is particularly advantageous in scenarios where it is inconvenient or impractical to supply power separately, allowing for more flexible placement of networked devices and decreasing installation costs and complexity.

The other options do not align with the core functionality of PoE. Data speed enhancements, wireless communication support, or improvements in network bandwidth concern different aspects of networking that do not relate directly to the provision of power through Ethernet cabling.