Apple Computer, , Macbook 13' Core Duo 1.83, 2.0GHz (White) , 2.0GHz (Black), , Apple Order Number, MA254LL/A, MA255LL/A, MA472LL/A, Model Number, A1181, Model Year, N/A, Part Name, SDRAM, 512 MB, DDR2, 667, SO-DIMM, Manufacture Part Number, N/A, Compatible Apple Order Number, MA254LL/A, MA255LL/A, MA472LL/A,, Compatible Model Number, A1181, EMC Number, EMC-2092, EEE Code, N/A, Compatible Apple Computer Family, MacBook (13-inch)
Order you product here: 661-3961 SDRAM, 512 MB, DDR2, 667, SO-DIMM A1181 MA254LL/A, MA255LL/A, MA472LL/A, 661-3961
source http://info.applepartsellers.com/661-3961-sdram-512-mb-ddr2-667-so-dimm-a1181-ma254ll-a-ma255ll-a-ma472ll-a