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Designed for the most demanding needs of photographers and videographers.
Connect and charge all of your devices through a single Thunderbolt or USB-C port.

Shipping Soon: OWC Thunderbay 4 with Thunderbolt 3, Up to 48TB Capacity

Not sure which Mac to get or how to configure it? Consult with Lloyd.

The OWC Thunderbay 4 has been a mainstay rock-solid storage solution for me for years now—I have five of them.

The new Thunderbay 4 with Thunderbolt 3 ships in soon and is available in OWC Thunderbay 4 regular edition and OWC Thunderbay 4 RAID-5 edition. The units are physically identical but the RAID edition includes SoftRAID for support of RAID 0, 1, 4, 5 and 1+0.

The non-RAID version can be turned into a RAID version by purchasing SoftRAID separately.

RAID edition specs

The Speed You Need

  • Dual Thunderbolt 3 ports
  • DisplayPort 1.2
  • Maximize the potential of four 3.5" drives or four 2.5" drives – no adapter needed
  • User configurable in RAID 0, 1 , 4, 5 & 1+0
  • Ultra quiet, heat dissipating aluminum chassis
  • Rigorously pre-tested with multi-hour burn-inIntelligent drive monitoring with desktop and email notifications

ThunderBay 4 is the four-bay production drive powerful enough to create workflows without limitations. With support for RAID 0, 1, 4, 5 and 1+0, you'll transform progress bars into progress. Enjoy the capacity to meet any project demand, including yours. And with the reliability of rigorous 7x stress-testing, and multi-hour drive burn-in before it reaches you, your only concern will be finding enough hours in the workday.


OWC Thunderbay 4 Thunderbolt 3 4-drive solution
OWC Thunderbay 4 Thunderbolt 3 4-drive solution
OWC Thunderbay 4 Thunderbolt 3 4-drive solution, rear view

Russell L writes:

Perhaps a note in your advertisement for the Thunderbay IV Raid edition. Tell readers that if the Thunderbay Raid edition is purchased it can and only will work with the Thunderbay IV. For it to work with other devices they would have to purchase the “full” version. I have a full license for SR and a version for the TB-IV. I often do a certify on a OWC drive dock while using the TB-IV, but I can only do this with the full version.

MPG: good point. Buy the full version of SoftRAID at or at There are also 30-day demo versions.

There is also the about $37.50 SoftRAID Lite, which is a fraction of the price. I haven’t followed the feature differences much since I have the full version, but the specs say that SoftRAID Lite does include the Certify command.

The word from OWC is that the bundled SoftRAID on RAID-5 edition units supports all functionality on most OWC hardware going back 5 years or so. To use SoftRAID with non-OWC hardware, SoftRAID must be upgraded to the full any/all-brand version .

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