PoE injector power panel 4 ports Extralink The power panel with four PoE ports can power up to 4 devices. The RJ45 connectors located on one side of the device are Ethernet ports without power (switch), on the opposite side there are ports for connecting the power supply of the Ethernet cable, i.e. 4, 5 (positive pole) and 7, 8 (negative pole). Features 10/100 Mbps Ethernet support Flexible power supply - from 12 V ~ 48 V DC 4-port PoE injector - 4 LAN ports and 4 LAN + PoE ports