Note for OWC Aura Pro X or Aura Pro X2 SSD Upgrades
macOS 10.13 High Sierra (or later macOS) must be installed on the host computer before installing the OWC Aura Pro X or Aura Pro X2 SSD. These OS versions include an EFI firmware update for your host computer. Without this update, your new SSD will not function once installed.
NOTE: Before installing an OWC Aura Pro X SSD in your MacBook Pro, carefully peel the thin plastic liner off the top of the thermal pad. Do NOT remove the thermal pad itself. The thermal pad is important for your Aura Pro X SSD to function properly.
OWC also offers tips on how to migrate your data and format your drive.