A-Tech For Apple 512MB Module Power Mac G4 iBook Early 2004 Late 2004 M9164LL/A A1054 M9388LL/A A1055 M9165LL/A M9426LL/A M9418LL/A M9419LL/A M9623LL/A M9627LL/A M8787LL/A M8570 M8839LL/A Memory RAM 512MB Module (1 x 512MB) SO-DIMM DDR NON-ECC PC2100 266MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For iBook, Power Mac G4 Models: Early 2004 Late 2004 M8787LL/A M8839LL/A M9164LL/A M9165LL/A M9388LL/A M9418LL/A M9419LL/A M9426LL/A M9623LL/A M9627LL/A A1054 A1055 M8570 PowerBook6,3 PowerBook6,5 PowerMac3,6