Abstract: An electronic device and a method for power over Ethernet (PoE) are disclosed herein, in which the electronic device includes a first connection unit, a second connection unit and a third connection unit. The second connection unit is electrically coupled to the first connection unit. The third connection unit is electrically coupled to the first connection unit and the second connection unit. The first connection unit is configured to receive power provided by a power sourcing device. The second connection unit is configured to output the power to a powered device. The third connection unit is configured to to output a DC voltage to a load device by using the power.