NVIDIA GeForce 8800 GS Graphics Card Replacement for Apple part number: 661-4664 Each card is fully tested and working perfectly in the iMac New A04 version, more reliable than the faulty blue type (A02) Unit has NOT been repaired, no BGA re-ball / re-flow etc For Apple iMac A1225 - EMC 2134 & EMC 2211 models only (this card is NOT compatible with EMC 2267 or later models) Heat-sink assembly NOT included - you can re-use your existing one. (if upgrading from the ATI 2600 you will need heat-sink part: 730-0483 or 730-0573) For installation by an engineer or experienced users only. Any questions please ask first - I am happy to give advice & instructions. [ Several units available - if sold see my other listings ]