Gigabit Ethernet Power-over-Ethernet (PoE) switches are designed to simplify networking installation and to meet the high standard for performance and environmental requirements. These PoE switches allow both data and power to be transmitted through one cable therefore reduce the need for power adapters that lead to lower power consumption. The PoE switches provide up to 30W watts of power per PoE port and this will be enough to power up even industrial heavy-duty PoE devices such as weather-proof IP cameras, high-performance wireless access points, and rugged IP phones. Gigabit Ethernet Power-over-Ethernet (PoE) switches come in both managed and unmanaged versions. The managed version of the switch will give users greater control over their networking environments.