If you have a 2019 model iMac or earlier with a “Fusion Drive” or “Hard-Disk-Drive”, we recommend replacing with an SSD ASAP as the drive could fail at any minute.

imac with fusion drive

have been shipping iMacs with (Solid-State-Drives) since 2020 due to the high failure rates of (Hard-Disk-Drives) and in pre-2020 iMacs which were only 1 or 2 years old (and covered by AppleCare)

Q – But aren't Fusion drives the same as SSD's?

A – Yes and No. Fusion drives incorporate a small SSD in combination with a much larger (1TB, 2TB, 3TB) HDD (Hard-Disk-Drives). It is not the SSD component that is prone to failure but the HDD component is.

Q – How can I tell what kind of drive my iMac Has?

Depending on OS, there are a few ways. What you are looking out for is if any of the drives are referred to as “HDD” or “Fusion Drives”


Fusion Drive Macbook Pro
or > System Report >

or Applications > Utilities >

The following is a …it has a small 128GB SSD and a 1TB or bigger HDD

What you want to see in ONLY “SSD” and nothing else

If you see any “HDD” or “Fusion Drive” you know you have the mechanical HDD () that is prone to failure

How to Protect My from loss?

Of course, the answer to securing your iMac is to run backups continuously. By having a current time-machine , failed drives can be replaced and data restored without any loss of data.

How to setup Time Machine

Many owners of 2017/2018/-  21″ iMac's with 1TB HDD's replaced them with third-party SSD's within months of purchase due the very slow and poor performance caused by the extremely slow drives.

iMacs purchased after 2011 are not that easy to upgrade due to having to remove and replace the display to gain to the drives. One mistake and you can easily crack the display. It is recommend you only have this done by qualified .

iMac Fusion drive replacement cost

Add an additional $78 to above prices for the removal of the old fusion drive