The 1-Port 802.3bt PoE++ to 4-Ports 802.3af/at Gigabit PoE Extender (Part number: POE-E304) from Planet is a Power over Ethernet (PoE). PoE (Power over Ethernet) products transmit both power and data across the internal cores of an Ethernet cable technology, enabling to get power to hard-to-reach areas. Nowadays they are an integral part of homes network setup, helping to remove the need of having other power cables since PoE devices are powered by ethernet cables.
1-Port 60W Ultra PoE to 4-Ports 802.3af/at Gigabit PoE Extender