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Hello, I wish to know what is the part number of the optical drive shipped with the iMac(early 2009) that is the Optiarc DVD RW AD5670S?… I need to get it replaced and they ask for a part number at the place. Please can anyone help?

Your part number is 661-4845. It is a SATA superdrive.

here’s the repair guide, but it doesn’t look like iFixit has the drive.

thanks…ur ryt..it’s SATA……IT would be really great if you could do me one more fvor..would rlyry apprecite it… can u provide me with the dump of 2AHF firmware revision of this drive?(the older one)