As a bonus, if it turns out your built-in 128GB SSD from the Fusion Drive is still good, that can be mounted right alongside the SATA SSD for some extra storage. The new APFS file system that MacOS has used the past few years is really optimized for SSDs and it's just going to be dog slow if you put a spinning HDD in it - especially since it'll no longer have that boost from the SSD part of the Fusion Drive it formerly had. They're dirt cheap these days and the iMac will have a way better shot at remaining useful for a few more years. If you're selling the machine, I'd say just put an SATA SSD in. A definite PITA, but doable if you're patient and careful. Took maybe 2 hours, much of which was spent carefully removing the old adhesive from the display so I could fit the new adhesive strips cleanly. I got a kit with all the necessary tools and parts from iFixit, laid it all out on the kitchen table and had at it.

Anyway, I opened the machine up and replaced the spinning HDD with an SATA SSD. The SSD part was at like 1% of its life left according to a couple disk utilities I looked at (turns out those SSDs in Fusion Drives get absolutely hammered with read/write cycles). I had exactly the same 2014 iMac 5K you have and had a Fusion Drive about to fail a couple years ago. I'm not sure whether the SSD or HDD on yours failed, but either way I believe all the data is probably toast because MacOS basically merges both devices into one volume. Specifications: Storage capacities up to. All OWC brand memory is thoroughly tested and assured to perform flawlessly with your iMac and is covered by a Lifetime Advance Replacement Warranty and a Money-Back Guarantee.I really doubt the data is recoverable, but I can see why you'd want to be totally sure. This is an internal 1.0TB 3.5 SATA 7200RPM hard drive replacement and or upgrade for various Mac desktop models. To make the memory installation process as stress-free and straightforward as possible, we provide step-by-step installation videos to walk users through the upgrade process and expert technical support, who are more than happy to answer any questions you may have.

Since the debut of the Apple iMac in 1998, OWC has offered Apple-compatible memory upgrades for any Apple iMac desktop. We recommend professional installation for these models to ensure you upgrade your iMac RAM safely. If you own a 21.5-inch iMac or an iMac Pro, the memory upgrade process is more advanced and involves removing and reinstalling the iMac screen to access the memory. After opening this door, you can easily access and pull out the original memory and replace it with any other Apple-compatible memory modules. In the back of each 27-inch iMac, there is a small memory bay door that houses the memory cage. If you own a 27-inch iMac, upgrading the memory is simple and should only take about five minutes to complete.

2014 imac hard drive replacement