Michael Kennedy wrote:

Just wondering Rod, how'd you come to that conclusion? More than
likely the usb hub will be plugged into the same electrical source
as the PC and therefore also be effected by the by the power surge.
Would it not?


Wall warts have pretty good safety measures.

And computer SMPS dont?

Nope, quite a few of the cheap ones die very spectacularly
indeed, over voltaging what is powered from them.

Transformer based wall warts are much less likely to be
damaged by the sort of lightning damage he was asking about.