A-Tech For Apple 512MB Module PowerBook G4 2003 Mid 2004 M8793LL/A A1013 M8980LL/A A1046 M8981LL/A M9110LL/A A1052 M9421LL/A A1095 M9422LL/A M9462LL/A A1085 M9676LL/A A1106 M9677LL/A Memory RAM 512MB Module (1 x 512MB) SO-DIMM DDR NON-ECC PC2700 333MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For PowerBook G4 Models: M8793LL/A M8980LL/A M8981LL/A M9110LL/A M9421LL/A M9422LL/A M9462LL/A M9676LL/A M9677LL/A A1013 A1046 A1052 A1085 A1095 A1106 PowerBook5,1 PowerBook5,2 PowerBook5,3 PowerBook5,4 PowerBook5,5 PowerBook5,6