Power Over Ethernet

Summary

Power over Ethernet is a way of providing power to a device, such as a switch or router, over a standard data connection cable.

Devices and their Wattage

• 802.3af powered devices typically capture around 13 Wattes of power
• 802.3.at powered devices can draw up to about 25 W of power over maximum current of 600 mA
• 802.3bt supplies up to about 51 W (Type 3) or 73 W (Type 4) usable power.