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I have iMac 15.1. I have 512GB SSD installed on SATA bus. No NVMExpress devices reported. I plan to get 2TB NVMe SSD from OWC and remove SSD. Is it possible to have only NVMe drive? The drive appearance in the OS:
OK I see the confusion! The Apple SSD is a PCIe/AHCI drive not a PCIe/NVMe. Thats why it’s listed under the SATA section! Hopefully this helps explain things.
So to clarify your current SSD is using the PCIe connection, so you would need to take it out to make room for the PCIe/NVMe drive. So to answer your question: Yes, you can swap out the SSD and run your system with the OWC SSD.
