If your SSD isn’t detected in the Mini NVMe SSD Enclosure, try these steps:

• Power off and disconnect the enclosure, then reopen it and reseat the SSD firmly in the slot.
• Confirm the SSD type matches the enclosure (NVMe vs SATA) and is a supported form factor.
• Try a different USB-C cable that supports data transfer.
• On Mac, open Disk Utility > View > Show All Devices to check for an unformatted drive.
• Make sure your macOS is up to date.

If the problem continues after these steps, submit a support request.