PoE++ or Power over Ethernet is an electrical industry standard which allows power to be transmitted simultaneously with data signals over CAT cable, allowing devices to operate without
the need of a separate power supply. Maximum power per port: PoE++ provides up to 100watts at 52-57v, PoE+ provides up to 30watts at 50-57V, PoE provides up to 15.4 watts at 37-57V