You will need to grab an adapter at the airport. SA power plugs are 3 round pin type, they look like this:

http://www.power-cord.org/uploadfile/south-africa-sabs-israel-power-cords-n02-1439.jpg

Your laptop should be able to take 220V input, as should your power cable.  If not, don't bring them!  A step down transformer wil be very expensive and heavy to lug around!

On Thu, Jul 11, 2013 at 9:57 PM, Marc Perkel <[log in to unmask]> wrote:
So - I have an American 115 volt power plug on the laptops I'm bringing. Am I going to be able to plug it in? If not - what do I need?



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Cheers,

McTim
"A name indicates what we seek. An address indicates where it is. A route indicates how we get there."  Jon Postel