4 PORT POE INJECTOR supports 10/100/1000M Ethernet, LAN RJ45 sockets is for Switch/PC/HUB 1/2 & 3/6 & 4/5 &7/8 are transmitting data. Pin 1/2 & 3/6 & 4/5 & 7/8 transmitting data, Pin 4/5(+) & 7/8(-) is for power.
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