SOLVED: No HDD in HDD bay, but Disk Utility sees SSD - iMac Intel 21.5" EMC 2889

No HDD in HDD bay, but Disk Utility sees SSD

No HDD, cradle or SATA power/data cable seen in HDD bay. But Disk Utility sees Apple SSD SMO256G PCI internal physical disk.

How do I add new SSD?

Where is SATA power/data cable?

Need to get SSD cradle and SATA power/data cable?

Further research suggests that this iMac could have had a Fusion Drive (combining a hard drive and flash storage in a single volume), but no was HDD installed? Or it was removed?

This iMAc likely has flash storage (SSD) on mother board, can it be replaced?

I will look for SATA data/power cable, under the fan and HDD enclosure area.

If it is not there, can I install SATA data/power cable?

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Posted: Nov 21, 2023

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The SSD you are seeing is the one mounted on the back side on the logic board. Review this guide iMac Intel 21.5" EMC 2889 Blade SSD Replacement

The Samsung 256GB Blade SSD offers a PCIe 3.0 x4 interface and nearly twice as fast as the SSDs found in the 2013 and 2014 systems.

If you want to add in a 2.5” SATA SSD into the system you will need a cradle and a SATA cable. Follow this guide to open the system iMac Intel 21.5" EMC 2889 Hard Drive Replacement and here’s the needed parts: