What is it - A UCTRONICS PoE splitter to split the PoE signal into 5V USB-C power supply and gigabit Ethernet in RJ45 so that non-PoE devices can be powered over Ethernet. What is PoE Deliver power and data with a single Ethernet cable for fewer wall plugs and messed cables. Extend powerline to where no AC outlets are nearby, up to 300 feet away from the power source