Full Gigabit 5 Port PoE Switch: Unmanned PoE switch with 4 10/100/1000 Mbps RJ45 PoE+ ports and 1 Gigabit Ethernet Uplink port, 4 PoE+ ports providing up to 30W per port, total PoE power budget 65W(Include 48V 1.35A external power supply) | Power Over Ethernet, Plug And Play: Compliant with IEEE 802.3af/at POE standard, this gigabit unmanaged poe switch 4 port can automatically detect and identify PD devices that comply with the standard and supply them with power through the network cable. Plug and play, easy setup with no software configuration required. It can meet the POE power supply requirements of security monitoring, teleconferencing systems, wireless coverage and other scenarios. | 250 Meters Extend Transmission: Automatically detect the transmission distance and adjust the transmission rate, extend up to 250m(820ft) data and power PoE transmission range (Speed will drop to 10 Mbps). For better result over long distances transmission, use cat5e cables or above. | PoE Auto Recovery: This 4 port gigabit poe switch equipped with professional poe chip, it can intelligently detect the data exchange between the poe port and the terminal device. When an abnormality is detected, it will automatically restart and return to normal without affecting other ports, reducing maintenance costs. | Energy-Saving and Reliable Data Transmission: Energy saving design compliant with IEEE802.3az. Support IEEE 802.3X flow control, ensure stable, reliable and efficient data transmission. Sturdy metal casing with low power consumption fanless design to ensure silent operation. Compact size 5.12*3.46*1.18 inch with desktop or wall mount methods are well-suited for different environments.