Simply providing 24V 2-pair input makes NanoSwitch an outdoor 4-port unmanaged switch with "always on" 24V 2-pair output on three ports. PoE In — RJ45 port supports 10/100/1000 Ethernet connections, and supports passive 24V, 2-pair PoE to power the switch. PoE Out — RJ45 ports support 10/100/1000 Ethernet connections, and the three passive 24V, 2-pair PoE ports provide up to 30W PoE output.