Maximum power rating & maximum heat dissipation are the worst-case theoretical maximum numbers provided for planning the infrastructure with fully loaded Po E (if equipped), 100% traffic, all ports plugged in, & all modules populated. Po E Power is the power supplied by the internal power supply, it is dependent on the type & quantity of power supplies & may be supplemented with the use of a External Power Supply (EPS). With AC input, the Max power consumption is 523W (370W for Po E).