If it is the last generation 14" 1.33 GhZ iBook, it uses DDR266 (PC2100) SO-DIMMs. If it is the current 12" 1.33 GHz, it uses DDR 333 (PC2700) SO-DIMMs.
If it is the last generation 14" 1.33 GhZ iBook, it uses DDR266 (PC2100) SO-DIMMs. If it is the current 12" 1.33 GHz, it uses DDR 333 (PC2700) SO-DIMMs.