For our latest products, please visit the OWC website at

Supported products:

FileDescriptionFile sizeLast modified
Download this file (thunder3-quad-x-history.txt)Firmware HistoryHistory of previous changes0.3 kBJun 05, 2019
Download this file ( UpdaterFirmware tool for Windows 10402 kBJan 08, 2019
Download this file (anti-virus-alert.txt)Virus AlertExplanation for alert on macOS by some anti-virus programs1 kBMay 09, 2019


  • The firmware cannot be updated on a PC that has a built-in AMS106x SATA controller.
  • This firmware is only for AKiTiO products and specifically the model(s) as mentioned above. DO NOT use this firmware for any other devices!
  • The Mac updater is available only for macOS 10.12.4 to macOS 10.15.7. It is NOT compatible with macOS Big Sur, M1 Macs or the MacBook Pro (13-inch, 2020, Four Thunderbolt ports).


  • Never turn off or disconnect your unit during the firmware update procedure. This may damage your device! If the upgrade fails (e.g. power failure during firmware update), you may not be able to operate your device anymore.