
Replacing the old Hard drive with new one increases the overall performance on your iMac®.

Over time iMac® hard drive becomes less powerful to read and write your data, and this makes your iMac® drop in performance, Using the same hard drive for a long period of time also increases the risk of failure.

Almost all iMac® models use Hard Disk Drive(HDD) for a primary storage unit. The storage unit, also known as a Hard Disk Drive(HDD) is the main and most important part of your device because this is the thing that stores all of your data on the computer like photos, music, videos, etc. How to Install an M.3.5 Hard drive, 2.5 Hard Drive, 2.5 SATA SSD, and NVMe SSD.How to Upgrade Your Laptop’s Hard Drive to an SSD.How to Tell If You Can Upgrade Your Laptop.How to Find Downloaded Files in Mac OS X.How to Make Desktop Shortcuts in Mac OS X.

Provided you're comfortable with it, you can now erase all the files on your new portable drive, and use it as external storage. After that, you're all done! Your Mac will restart, and your desktop should appear exactly as it did before you swapped SSDs.
