What model of disk drives in late 2012 iMacs?

My 21" has a Seagate, but Apple doesn't spec out drives from one specific vendor. Any given iMac could have any brand of drive...whatever was available when it was being built. I think the exception to the rule is MPs have WD Black drives, nothing less.

My iMac has an HTS541010A9E662 Hitachi and the SM128E Samsung for Fusion.

iLondoner said:

Cheers, that's the 5K1000.

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Yup. Glad that it is that too.

iLondoner said:

According to R.OG's teardown pics, the base 1TB drive in the 27-in models is the Western Digital Caviar Blue.

I would hazard a guess that the 3TB drives are also WD Blue.

Western Digital own Hitachi whose drives are used in the 21.5-in models.

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If the 3 TB model is really a WD Blue, then Apple should be ashamed of the upgrade price they are asking to go from 1 TB to 3 TB .

3 TB WD Blues don't exist. The largest size of Blue that WD makes is 1 TB.

There's now another thread on this topic: https://forums.macrumors.com/threads/1510017/

The evidence so far suggests that all the 3 TB drives are Seagate 7200.14s. The 1 TB drives seem to be a mix of Seagate 7200.14s and WD Blues.