A few notes about the different models: Powerbook G4 Titanium If your unit originally had a DVD drive only (400mhz and 500mhz models and some models of the 550 and 667mhz) Then you need a mounting bracket and ICB (interconnect board) to use this drive in your unit. This is a replacement Apple CD-RW/DVD-ROM for the powerbook G4 Aluminum and Titanium, iBook G4, and Powerbook G3 Pismo and Lombard, and Macbook Pro 17' This comes with our standard 1 year warranty.
