A-Tech For Apple 2GB Module PC2-4200 533MHz Power Mac G5 iMac Late 2005 MA063LL/A A1144 MA064LL/A A1145 M9590LL/A A1117/A1177 M9591LL/A M9592LL/A Memory RAM 2GB Module (1 x 2GB) DIMM DDR2 NON-ECC PC2-4200 533MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For iMac, Power Mac G5 Models: Late 2005 M9590LL/A M9591LL/A M9592LL/A MA063LL/A MA064LL/A A1117/A1177 A1144 A1145 PowerMac11,2 PowerMac12,1