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Model A1419 / EMC 3070 / Mid 2017 / 3.4, 3.5 or 3.8 GHz Core i5 or 4.2 GHz Core i7 Kaby Lake Processor (ID iMac18,3) / Retina 5K display. Refer to the older iMac Intel 27" Retina 5K Display (Late 2014 & 2015) guides as the system is very similar.

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Compatibility iMac 2017 | Upgrade internal - SSD Samsung 980 PRO / 980

I have an iMac 2017 5K retina display and Fusion Drive 2TB + 32GB SSD internal blade. I would like to upgrade the internal PCIe 32 SSD to a new Samsung SSD m2 NVME 980 (simple or PRO) - and I would like to know if th enew SSD from Samsung is compatible via a 16+12 pin adaptor, for my iMac 2017?

I was looking at the first time to buy a 980 PRO SSD but I read that the PCIe 4.0 is not available in my iMac 2017, so the max. speed I would get is the speed of PCIe 3. Is this right? If 980 PRO is better than 980 simple (not takeing in consideration speeds) I would choose the PRO versions, but if they are the same...the cost for PRO is almost 35-40 eur +.
Thank you.

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I strongly recommend sticking to an Apple OEM SSD or use the correctly designed 3rd party drives. Using these adapters with an M.2 SSD carries a fair number of risks of not being fully compatible and not as stable.

As far as using the newer 4.0 PCIe interfaced drives like the new Samsung 980 SSD these drives won’t leverage the improvements of the newer spec. as such it’s a waste of funds.

Most of these drives clearly state they are not compatible when used in an older 3.0 PCIe spec’ed system or only run in compatibility mode.

I would invest in an external RAID system as being the smarter direction if you need that level of performance

Many of the systems I have setup for both video and music students and even semi pros is a one or two TB Apple or OWC blade SSD and then upgrade the SATA drive from a HDD to a sizable SSD. Here the goal is leverage the better interface for the task, holding the OS and the Apps on the blade drive leaving a good portion of the drive unused for the OS and Apps to use the space for Virtual RAM and caching, if the App leverages it scratch space as wellFor large audio projects use the blade SSD to host the active work piece. Very large video work really needs an external RAID setup. For most the SATA drive is more than enough.

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