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Released June 2012 / Core i7 processor with Turbo Boost / Up to 1 GB GDDR5 Video RAM

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4 x M.2 drives in Mid 2012?

I know this is an older laptop. But, I recently found this M.2 to SATA adapter that can house 2 M.2 blade SSD’s: Dual-M-2-SATA-Adapter-RAID

This got me thinking, would it be possible to install 4 blade SSD’s in two of these adapters if I were to replace my current HDD and the optical drive with the OWC Data Doubler?

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Corrected system info from Early 2011 to Mid 2012.

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Sadly a day late and a dollar short ;-{

While this is a plausible solution for the primary drive it won’t work terribly well on the optical bay. You see the your system has a limitation within the optical drives SATA port as you can see here OWC Data Doubler reference your system from here: MacBookPro8,2 You’ll see your optical drive’s listed I/O speed is SATA III (6.0 Gb/s) but needs a SATA II (3.0 Gb/s) based drive. Auto sense drives won’t work, and this adapter unit is likewise auto sense so it won’t work either.

Now getting into this a bit deeper, you’ll see the unit requires the older mSATA based M.2 SSD’s which are not very fast or offer larger sizes (4-8 TB). The newer 2.5” SSD’s are faster and cheaper than these older 2230, 2242, 2260, 2280 M.2 Samsung SSD’s. And the adapter does not support the newer better M.2 NVMe or AHCI PCI-Express SSDs.

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Correction, I have a MacbookPro9,1 the optical drive has a SATA 3 and I/O speed is 6.0 Gbps

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That does resolve the Data Doubler carrier SATa port sped issue! You still have the limitation of the M.2 drives you can use here. Still think you'll find a standard 2.5" SSD will offer more performance and would be cheaper.

As an example: Samsung 1TB 860 EVO SATA III 2.5" - $165 USD VS Your adapter $44 + WD Blue 1TB SSD - $140 or two Blue 500 GB SSD - $83 each.

If this was three - four years ago then I could see it as viable solution as the prices for 2.5" SSD where still quite high. If you have some loose M.2 SSD's then the reuse is a possible option.

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Keith Chirayus will be eternally grateful.
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