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Current version by: Jason S. ,

Text:

Upgrading an 2017 iMac 27" with an off the shelf NMVe m.2 SSD + M.2 Apple PCIe adapter is definitely possible.
 
I am amazed how much confusion information is on the internet about this topic. Even from OWC, which only wants to sell a SATA upgrade kit for the 2017 iMac.
 
So I thought, try and find it out.
 
I did my 2017 iMac with a EVO 970 NVMe SSD + Sintech M.2 NVMe to Apple PCEe adapter.
 
I only recommend the Sintech adapters, others are known to have issues.
 
I used:
 
https://www.amazon.com/Sintech-M-2-PCIe-2280-SSD-Karte-MZ-JPU128T-SD6PQ4M-128G/dp/B01CWWAENG
 
I have some images on instagram where I did my upgrade.:
 
https://www.instagram.com/p/Bs0loRDga6c/
 
https://www.instagram.com/p/Bs06bPLAz1p/
 
I am happy I did it and got rid of the FusionDrive setup.
 
As a note, if you plan to replace the SATA drive with an SSD, which I also did then "No" you do not need the overpriced and useless thermal Sensor from OWC either.
 
Update 03rd March 2019:
 
Do not buy the Samsung EVO 970 “Plus” , it is known not to work.
 
I recommend the regular EVO not the EVO Plus or EVO Pro.
 

Samsung
If you still insist on using the non standard EVO then Samsung released an firmware update for the EVO Plus that fixes issues on Mac, you need to upgrade it first using a PC before putting the drive in your Mac.

Samsung
If you still insist on using the non standard EVO then Samsung released an firmware update for the EVO Plus that fixes issues on Mac, you need to upgrade it first using a PC before putting the drive in your Mac.

Status:

open

Edit by: Jason S. ,

Text:

Upgrading an 2017 iMac 27" with an off the shelf NMVe m.2 SSD + M.2 Apple PCIe adapter is definitely possible.
 
I am amazed how much confusion information is on the internet about this topic. Even from OWC, which only wants to sell a SATA upgrade kit for the 2017 iMac.
 
So I thought, try and find it out.
 
I did my 2017 iMac with a EVO 970 NVMe SSD + Sintech M.2 NVMe to Apple PCEe adapter.
 
I only recommend the Sintech adapters, others are known to have issues.
 
I used:
 
https://www.amazon.com/Sintech-M-2-PCIe-2280-SSD-Karte-MZ-JPU128T-SD6PQ4M-128G/dp/B01CWWAENG
 
I have some images on instagram where I did my upgrade.:
 
https://www.instagram.com/p/Bs0loRDga6c/
 
https://www.instagram.com/p/Bs06bPLAz1p/
 
I am happy I did it and got rid of the FusionDrive setup.
 
As a note, if you plan to replace the SATA drive with an SSD, which I also did then "No" you do not need the overpriced and useless thermal Sensor from OWC either.
 
 
 
Update 03rd March 2019:
 
Do not buy the Samsung EVO 970 “Plus” , it is known not to work.
 
 
 
Update June 2019 :

I can really only recommend
Samsung released an firmware update for the regular EVO 970, not the Pro or Plus. The Plus is known notthat fixes issues on Mac, you need to work and the Pro either has issues with the 2019 iMac or Samsung changedupgrade it first using a PC before putting the controller, not sure yetdrive in your Mac.
Update June 2019 :

I can really only recommend
Samsung released an firmware update for the regular EVO 970, not the Pro or Plus. The Plus is known notthat fixes issues on Mac, you need to work and the Pro either has issues with the 2019 iMac or Samsung changedupgrade it first using a PC before putting the controller, not sure yetdrive in your Mac.

Status:

open

Edit by: Jason S. ,

Text:

Upgrading an 2017 iMac 27" with an off the shelf NMVe m.2 SSD + M.2 Apple PCIe adapter is definitely possible.
 
I am amazed how much confusion information is on the internet about this topic. Even from OWC, which only wants to sell a SATA upgrade kit for the 2017 iMac.
 
So I thought, try and find it out.
 
I did my 2017 iMac with a EVO 970 NVMe SSD + Sintech M.2 NVMe to Apple PCEe adapter.
 
I only recommend the Sintech adapters, others are known to have issues.
 
I used:
 
https://www.amazon.com/Sintech-M-2-PCIe-2280-SSD-Karte-MZ-JPU128T-SD6PQ4M-128G/dp/B01CWWAENG
 
I have some images on instagram where I did my upgrade.:
 
https://www.instagram.com/p/Bs0loRDga6c/
 
https://www.instagram.com/p/Bs06bPLAz1p/
 
I am happy I did it and got rid of the FusionDrive setup.
 
As a note, if you plan to replace the SATA drive with an SSD, which I also did then "No" you do not need the overpriced and useless thermal Sensor from OWC either.
 
 
 
Update 03rd March 2019:
 
Do not buy the Samsung EVO 970 “Plus” , it is known not to work:work.
Do not buy the Samsung EVO 970 “Plus” , it is known not to work:work.
 
https://www.instagram.com/p/BujHUcrg3Ra/

Update June 2019 :

I can really only recommend the regular EVO 970, not the Pro or Plus. The Plus is known not to work and the Pro either has issues with the 2019 iMac or Samsung changed the controller, not sure yet.
https://www.instagram.com/p/BujHUcrg3Ra/

Update June 2019 :

I can really only recommend the regular EVO 970, not the Pro or Plus. The Plus is known not to work and the Pro either has issues with the 2019 iMac or Samsung changed the controller, not sure yet.

Status:

open

Edit by: Jason S. ,

Text:

Upgrading an 2017 iMac 27" with an off the shelf NMVe m.2 SSD + M.2 Apple PCIe adapter is definitely possible.
 
I am amazed how much confusion information is on the internet about this topic. Even from OWC, which only wants to sell a SATA upgrade kit for the 2017 iMac.
 
So I thought, try and find it out.
 
I did my 2017 iMac with a EVO 970 NVMe SSD + Sintech M.2 NVMe to Apple PCEe adapter.
 
I only recommend the Sintech adapters, others are known to have issues.
 
I used:
 
https://www.amazon.com/Sintech-M-2-PCIe-2280-SSD-Karte-MZ-JPU128T-SD6PQ4M-128G/dp/B01CWWAENG
 
I have some images on instagram where I did my upgrade.:
 
https://www.instagram.com/p/Bs0loRDga6c/
 
https://www.instagram.com/p/Bs06bPLAz1p/
 
I am happy I did it and got rid of the FusionDrive setup.
 
As a note, if you plan to replace the SATA drive with an SSD, which I also did then "No" you do not need the overpriced and useless thermal Sensor from OWC either.
 
 
 
Update 03rd March 2019:
 
Do not buy the Samsung EVO 970 “Plus” , it is known not to work:
 
https://www.instagram.com/p/BujHUcrg3Ra/

Status:

open

Original post by: Jason S. ,

Text:

Upgrading an 2017 iMac 27" with an off the shelf NMVe m.2 SSD + M.2 Apple PCIe adapter is definitely possible.

I am amazed how much confusion information is on the internet about this topic. Even from OWC, which only wants to sell a SATA upgrade kit for the 2017 iMac.

So I thought, try and find it out.

I did my 2017 iMac with a EVO 970 NVMe SSD + Sintech M.2 NVMe to Apple PCEe adapter.

I only recommend the Sintech adapters, others are known to have issues.

I used:

https://www.amazon.com/Sintech-M-2-PCIe-2280-SSD-Karte-MZ-JPU128T-SD6PQ4M-128G/dp/B01CWWAENG

I have some images on instagram where I did my upgrade.:

https://www.instagram.com/p/Bs0loRDga6c/

https://www.instagram.com/p/Bs06bPLAz1p/

I am happy I did it and got rid of the FusionDrive setup.

As a note, if you plan to replace the SATA drive with an SSD, which I also did then "No" you do not need the overpriced and useless thermal Sensor from OWC either.

Status:

open