4-Port Power Over Ethernet (Poe) Extender,

Features one PoE-in port and three PoE-out ports. It is powered directly from the PoE network source, requiring no external AC power supply. It is compatible with IEEE 802.3af/at standards, supporting up to 30W input power. It allows extension of a single PoE connection by an additional 100 meters (328 ft). The data transfer rate is typically 10/100 Mbps.