Supported products:

FileDescriptionFile sizeLast modified
Download this file (thunder3-quad-x-history.txt)Firmware HistoryHistory of previous changes0.4 kBOct 12, 2017
Download this file ( updater (16.2)Firmware C1-23+4.4.3 with updater utility for Windows 10 (requires Thunderbolt Software 16.1.xx or 16.2.xx)291 kBOct 12, 2017
Download this file ( updater (16.3)Firmware C1-23+4.4.3 with update utility for Windows 10 (requires Thunderbolt Software 16.3.xx)292 kBOct 12, 2017


  • The Thunderbolt Software version on the computer has to be version 16 or later (e.g.
  • The firmware update has to be done on a PC running Windows 10 when the device is connected to the computer via Thunderbolt 3.
  • This firmware is only for AKiTiO products and specifically the model(s) as mentioned above. DO NOT use this firmware for any other devices!


  • 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.


How to update the firmware

  1. Right-click on the Thunderbolt icon in your taskbar. When a Thunderbolt device is connected, this icon will appear automatically. If not, select the Start button and sroll through the program list to locate and open the Thunderbolt™ Software first. In the context menu, select Settings and then go to Details... to check the current version of your software (driver).
    thunderbolt software version
  2. Download the corresponding firmware utility depending on the Thunderbolt Software version on your computer, save it on your local disk and unzip the file.
  3. Connect the device to your computer via Thunderbolt and turn on the power.
  4. Wait until the device has been recognized by the system and then double-click on the *.exe file to start the update.
    thunder3 quad x fw update 01
  5. Select the device "AKiTiO, Thunder3 Quad PD" and click Next.
    thunder3 quad x fw update 02
  6. Wait for the update to finish and make sure not to turn off the power or disconnect the device while the update is still in progress.
    thunder3 quad x fw update 03
  7. When the update has been completed, the program displays the message "Firmware was udpated successfully".
    thunder3 quad x fw update 04
  8. Click OK, safely eject the device from your system, disconnect the Thunderbolt cable and turn off the power.
    thunder3 quad x fw update 05
  9. Restart and reconnect the device to complete the firmware update procedure.