3pairs,PoE injector and splitter kit,Helps you save much money | Transforms Non PoE devices to PoE enabled,Compatible with Most Switches,HD Cameras,Wireless AP | Two 1/100M adaptive LAN ports(RJ45),Two 1/100M adaptive PoE port(RJ45),Cat6 copper core | Maximum transmission distance 100Meters/328Ft | Input voltage:DC24V-48V,Output power:12VDC 2A.Over-current Protection,Over-voltage Protection,Surge Protection,Short circuit protection