Apple said:Power
Built-in universal 48-watt power supply
Apple said:Electrical
Line voltage: 100-240V AC
Frequency: 50Hz to 60Hz, single phase
Maximum continuous power: 30W
....I remember that iMacs don't have this, as they're not really intended to be carried around. That was the case a few years ago, but Apple is still full of cheapskates to continue to include less and less stuff rather than more, so yes, it's probably still the case......