661-2821 1GB SD Ram DDR333 SO-DIMM for Power Book NB-4606W Apple part number: 661-2821, iBook G4, G4 (14-inch), iMac (USB 2.0), PowerBook (12-inch), (15-inch FW800), (17-inch 1.33Ghz), (17-inch), 661-2821 1GB SDRam DDR333 SO-DIMM for Power Book Apple part number: 661-2821