Upgrade HDD mid 2017 21.5 iMac 18.2

[e46pphkg]

Found storage is insufficient and wondering whether I could replace the existing 1TB HDD of the 1.03 TB Fusion with a larger 2.5 SATA III 6Gb/s 7mm HDD? Understand have to split the Fusion and merge SSD again. Thx

 

[chscag]

That iMac has 2 Thunderbolt 3 ports which can be used to attach an external SSD that would be just as fast as a SATA III internal drive. Disassembling that iMac can be quite a chore and then trying to fuse the new drive with the internal SSD is not easy. Something to think about.

 

[azentropy]

You could, but the speed gain vs external is minimal and just isn't worth it the hassle anymore IMO (and both are considerably faster then the clunker of a HDD it came with.

 

[e46pphkg]

Indeed. Thanks a lot guys.