Model A1312 / Mid 2011 / 2.7 & 3.1 GHz Core i5 or 3.4 GHz Core i7 Processor, ID iMac12,2

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Can I install 3 SSDs by replacing the optical drive?


I already have 2 SSDs in my iMac (iMac Intel 27" EMC 2429, 2011), one is replacing the original HD (with the thermal probe) and the second one is behind the optical drive. Can I remove the optical drive and install a 3rd SSD? Do I need any special parts if this is possible (like the thermal probe) ?

Thank you!


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While its theoretically possible I don’t think you’ll gain that much as the Optical drive port is only SATA II (3.0 Gb/s). I would put in a large 2.5” SATA II HDD instead or just leave the optical drive.

Basically, you’ll use the 12.7 mm SATA Optical Bay SATA Hard Drive Enclosure following the optical drive swap out iMac Intel 27" EMC 2429 Optical Drive Replacement. Don’t forget you’ll need a drive that runs at SATA II (3.0 Gb/s)

How about just getting a bigger SSD, swapping out your oldest drive with it. Bigger SSD’s are faster!

12.7 mm SATA Optical Bay SATA Hard Drive Enclosure Image


12.7 mm SATA Optical Bay SATA Hard Drive Enclosure


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Thank you Dan for your very fast reply!

I thought the optical bus was also SATA III, but if it’s SATA II, it makes no sense to connect an SSD.

All the best,



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Tom will be eternally grateful.
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