This Ram will work with hundreds of different model laptops. As long as you have a laptop that uses DDR2 Ram and can run on PC5300 Ram it should work for you.
I dont know for sure. What is in the description is some of what I found on the internet about it. "This Ram will work with hundreds of different model laptops. As long as you have a laptop that uses DDR2 Ram and can run on PC5300 Ram it should work for you." I would check into how well that info fits ur iBook... Sorry I couldnt be better help.