These are my new apple power supplies:
In fact, these are the two that remained after the other two vanished. Before the other two vanished I took a photo after I opened one of them so that you also can have a look at the inside:
If you look closely you can see that it is a dual-core. But like a lot of apples it has enough slots to take up to 6 cores.
Such an apple power supply has enormous power (or juice, if you prefer that) and can keep you running a long time. Try it for yourself and feel the power!