Model A1224 / Mid 2007 and Early 2008 / 2, 2.4, or 2.66 GHz Core 2 Duo processor

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Hard drive size limit?

I'm considering replacing my optical drive in my mid 2007 iMac 20" (EMC 2133) with a hard drive. I have already replaced the internal hard drive with a SSD and would like to add more internal capacity. My question is two-fold:

Is there any size limit for the hard drive going into the optical bay? I understand this bay uses PATA (at least from my searching thats what I've found).

and secondly, I use this computer for audio recording and production so the drive going into the optical bay will be used mostly for 24 bit audio files which get pretty big. Will I have issues with slower speed of PATA (if it is indeed PATA in this bay) keeping up with streaming multiple high res audio files in real time?

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Personally I would opt for reversing your plan. Put the boot OS on the optical bay (or an external) drive and do your recording to the SSD.

The optical, or external drives will not perform as well for audio recording (if that's what you're doing).

If this answer is acceptable please remember to return and mark it accepted.


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Thank you! I considered that but didnt want to spend what it would cost to get a big enough SSD. They're still pretty pricey. The one I installed is only 250 GB and that actually fills up pretty quick with audio. I was thinking a 7200 rpm HDD or possibly hybrid drive as an audio drive. Maybe a firewire external. Still considering options. Thanks for the help!


The optical bay adapter indeed connects via PATA. But it accepts accepts 2.5 inch SATA hard drives up to 9.5 mm in height. See the specs here: 12.7 mm PATA Optical Bay SATA Hard Drive Enclosure

You might even consider a hybrid drive: 1 TB SSD Hybrid 2.5" Hard Drive

1 TB SSD Hybrid 2.5" Hard Drive张图片


1 TB SSD Hybrid 2.5" Hard Drive



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Thanks! I might end up going with the hybrid set up. Still considering my options.



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