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The Mac Pro First Generation is an Intel Xeon-based workstation computer manufactured by Apple Inc. The first generation model includes the machines from 2006 through 2008.

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mx300 m2 sata on pcie

we bought a mx300 2t m2 sata for mass storage

i need suggestion for choice the best adapter/price solution for let it work full sata3 via pcie

so this is an ssd m2 sata version (not ngff), on internet i found different solution

-expensive marvel chip 4x lane

-cheap one 2x lane

-maybe normal card pcie to sata and after use adapter for m2.

the seller suggest 2x is enough so im going to buy cheap one.

however any suggestions will be appreciate

Отвечено! Посмотреть ответ У меня та же проблема

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The last version of the original Mac Pro system specs: Mac Pro "Twelve Core" 3.06 (Server 2012) for reference.


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Your original Mac Pro's SATA ports are only SATA II (3.0 Gb/s) but you have four bays so you can support RAID by leveraging all of the bays.

As for using a PCI slot to host a M.2 PCIe SSD unit. While it can be done, it won't necessarily get you better performance than using your drive bays depending on the SSD you use as well as the slot you use within the system. Lastly, your given system may not be able to even leverage the throughput here. Your CPU, memory as well as its graphics card could be a bigger bottleneck of the system.

Frankly, I would put in SSD's into the HD bays as being the better direction. Being cheaper and offer more bang if you RAID them.

Update (02/17/2017)

The problem here is the SSD you bought is a mSATA version of M.2 SSD which only works within a mSATA interface. It is not compatible with PCIe NVMe hardware.

Update (02/18/2017)

Sometimes a slower interface is faster! A dual drive RAID 0 drive set running SATA II (3.0 Gb/s) is faster than a single drive running SATA III (6.0 Gb/s)! Almost twice as fast!

Here you have the empty bays and have a dual channel SATA II (3.0 Gb/s) controller in the system already. All you will need is two 1 TB drives (as you wanted 2 TB of storage) and the frames to hold the drives.

There is different levels of RAID, yes some are to setup to protect the integrity of your data. While thats still important, SSD's don't have the same reliability issues as HDD's which is why using RAID 0 is quite safe.

As to what is auto sense: Sadly, many drive makers are scaling back their drive offerings. Fixed SATA I (1.5 Gb/s) & SATA II (3.0 Gb/s) drives are gone, for a long time we had auto sense drives which offered compatibility across two or more of the SATA speeds. Today, many drive makers are in the process of reducing their offerings again. Many HDD makers now only offer dual SATA II / SATA III auto sense drives. In the case of SSD's many are dropping dual and focusing on SATA III only! So you do need to be careful what you buy for older systems.


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thx dan, i already chosen and bought this 2tb mx300 m2 sata, was easier question.

i asked just for know if 2x lane cheaper card was enough for save money.

my configuration (2x5690-sm951 achi-titan x)


I would return it and get a standard 2.5" SATA SSD.

You will need to get one that auto senses the systems SATA port speed. Something like this: Samsung SSD 750 EVO


dan i don't get this " that auto senses the systems SATA port speed"

we can still turn it back but i didn't get why.

we spend 500€ for this mx300 2tb and is just one, with this evo 750 we need put 4 of 500gb for have 2tb and need to use pcie for full sata III (we don't care raid just mass safety media) so still suggest 2,5 sata vs m2 sata ?

really thx for your kind help


i'm always talking about a m2 sata to pcie adapter like following links, of course is not a PCIe NVMe !!




or expensive marvel one


seller already say that it work.......

1) work in a mac? i hope!!

2)enough 2x lane for buying cheeper card? seems yes, seller say that is enough


Sometimes it just doesn't work the way you want it to ;-{

You need a proper SATA controller so the more expensive Marvel one is the unit you need here. But it still won't work!

The reason here is you have no Marvel driver within MacOS or any of the older OS-X versions. So while you solved the hardware side, you can't solve the software side.

If you had a PCIe NVMe drive you could have used the cheaper cards as unlike the mSATA drive the interface on the drive is native within the OS and there is no hardware controller issues as its part of the SSD.


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