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OWC ThunderBay 8 144TB 8-Bay Thunderbolt 3 RAID 5 Array (8 x 18TB Enterprise)

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  • 8 x 18TB Enterprise-Class HDDs
  • 8 x 3.5"/2.5" SATA Drive Bays
  • 2 x Thunderbolt 3 Ports
  • 1 x DisplayPort 1.2
  • RAID 0, 1, 1+0 (10), 4, 5, JBOD
  • Preconfigured in RAID 5
  • Transfer Rates up to 2586 MB/s
  • 1 x 92mm Cooling Fan
  • SoftRAID XT Software Included
  • Windows and Mac Compatible

The OWC ThunderBay 8 144TB 8-Bay Thunderbolt 3 RAID 5 Array (8 x 18TB Enterprise) offers a massive 144TB of storage. It comes preconfigured in RAID 5 but supports multiple RAID modes like 0, 1, 4, 1+0 (10), and JBOD, and boasts impressive transfer speeds of up to 2586 MB/s. This OWC ThunderBay 8 144TB 8-Bay Thunderbolt 3 RAID array is compatible with both 2.5" and 3.5" HDDs or SSDs and supports hot swapping. It connects to your host via Thunderbolt 3 and provides an extra Thunderbolt 3 port for accessories. Additionally, it includes a DisplayPort for 4K monitor support and can handle a 5K monitor through its Thunderbolt 3 port.

A 92mm cooling fan ensures drives don't become overheated, while LED indicators allow for easy monitoring of drive activity and power. Utilizing an aluminum enclosure, the ThunderBay 8 sports a locking front panel and a lock slot on the rear panel for added security. OWC SoftRAID XT software is included, providing easy drive management. The ThunderBay 8 is compatible with Windows 10 and later and macOS 10.13 and later.


SoftRAID XT works with macOS 10.12 or later and Windows 10 or later. SoftRAID is licensed per computer. The SoftRAID serial number will work with both Mac and Windows but can only be active on one computer at a time. Additional seats can be purchased. RAID 4/1+0 (10) are currently Mac only at this time. M1 Macs require macOS 11.3 or later.

Conquer High Bandwidth Demands

With Thunderbolt 3 offering real-world transfer rates up to 2586 MB/s and the ability to RAID together eight SSDs or HDDs, the ThunderBay 8's rugged, field-tested aluminum design has the under-the-hood horsepower needed to conquer high bandwidth requirements. You can even configure multiple ThunderBay 8 solutions connected via multiple Thunderbolt 3 ports on your Mac or PC to achieve exponential speed increases. Whatever your set up, when you're racing against a deadline, ThunderBay 8 puts you in the winner's circle.

Monstrous Capacity

Need even more capacity? Daisy-chain up to six of these capacity behemoths together for up to a staggering 960TB. Now you can capture vast amounts of footage from multiple cameras or store vast libraries of production work with a unified and reliable storage solution.

SoftRAID: RAID Made Easy

Harness the full capability of your OWC drive array with the included SoftRAID XT, the most powerful, intuitive RAID management software on the market for macOS and Windows. SoftRAID's RAID creation and management technology has been finely tuned to perfection with over 20 years of development to provide rock solid protection of your data and optimize drive performance. SoftRAID XT provides an unbeatable combination of speed, protection, and compatibility:

  • Advanced: Create RAID 0/1/4/5/1+0 (10) arrays
  • Protected: SoftRAID Monitor constantly watches your disks and alerts you if problems are detected
  • Validated: Volume validation ensures sectors can be read and parity is correct
  • Certified: Checks disks before use to ensure they are safe for data storage
  • Vigilant: Error prediction helps protect against unexpected failure
  • Universal: Move SoftRAID arrays seamlessly between Mac and PC2 with built-in OWC MacDrive technology

Beyond Hardware RAID

SoftRAID provides a level of storage performance that you simply can't get with hardware RAID. SoftRAID gives you increased power and control over your RAID drives and disks that hardware RAID can't deliver and doesn't lock you into technology that you can't upgrade or expand.

Swap and Identify Drives Easily

ThunderBay 8 makes it easy to keep large data sets organized for every project thanks to its eight hot swappable drive bays. Whether you're using 2.5" or 3.5" HDDs and/or SSDs, the drives mount in alphabetically labeled trays for easy identification and are secured by a thumb screw. If you want the freedom to access an extensive collection of drives quickly, you can create a drive "bullpen" with additional OWC drive trays (sold separately).

As Secure as a Bank Vault

With a locking front panel and security slot on the backside, the ThunderBay 8 is like an ironclad vault for your data. Plus, with front panel LEDs indicating the status of each drive, you'll know at a glance if your data is secure.

Secure Your Workflow with OWC ClingOn

Greatly reduce—if not eliminate—cable strain and accidental disconnects with the OWC ClingOn. These custom cable stabilizers (sold separately) screw into the ThunderBay 8's housing to secure your Thunderbolt 3 and USB-C connections and prevent work session interruption and possible data loss.

See More, Do More

The ThunderBay 8 isn't just about high-capacity, high-performance storage. It's about giving you all the options you need to work at your best. Attach a 5K Thunderbolt display or two 4K displays. Place a USB 3.1 device at the end of a daisy chain. With an extra Thunderbolt 3 port, you have the flexibility to add more devices to your workflow and master any task at hand. Dual display support, including available resolution and refresh rates, is dependent on host hardware and drivers. Apple Silicon M1 Pro, M1 Max, and M1 Ultra Mac models, Apple Intel-based Mac models, and Thunderbolt 4 PCs can support up to two displays at up to 4K/60 Hz via Thunderbolt. Apple Silicon M1 and M2 Mac models can support one external display up to 4K/60 Hz via Thunderbolt.

In the Box
  • OWC ThunderBay 8 144TB 8-Bay Thunderbolt 3 RAID 5 Array (8 x 18TB Enterprise)
  • Thunderbolt 3 Cable (2.3' / 0.7m)
  • External Power Cable
  • 2 x Security Keys
  • SoftRAID XT
  • Limited 5-Year Manufacturer Warranty
More Information
Product ConditonNew


Storage Capacity

144 TB

Included Drives

8 x 18 TB 3.5" HDD

Cache Memory per Drive

256 MB

Initial RAID Configuration




Rotational Speed

7200 rpm


Number of Bays

8 x 2.5"/3.5"


2 x USB-C Thunderbolt 3 (40 Gb/s) 1 x DisplayPort 1.2

Compatible Drive Interface


Maximum Capacity

With Drives Installed up to 960 TB (with Expansion)

Form Factor



RAID 0, 0+1, 1, 10, 4, 5, JBOD

Bridge Chipset

Intel JHL-6540 JMicron JMB-585

Hot-Swap Support


Transfer Rates

2586 MB/s (RAID Mode Unspecified) 2419 MB/s (Read in RAID 0) 2412 MB/s (Write in RAID 0)

UASP Support



OS Compatibility

Windows 10 or Later (64-Bit Only) macOS 10.13 or Later *As of July, 2023: Check with manufacturer for the most up-to-date compatibility




Security Features

Kensington Security Slot, Lockable Bay Door


AC Input Power

90 to 264 VAC, 50 / 60 Hz at 1.8 to 3.5 A

DC Input Power

12 VDC at 25 A

Power Source

AC Adapter

PSU Wattage

1 x 300 W


Operating Temperature

41 to 95°F / 5 to 35°C

Operating Humidity

8 to 90% (Non-Condensing)

Operating Altitude

-1,000 to 10,000' / -304.8 to 3048 m

Storage Temperature

-4 to 140°F / -20 to 60°C

Storage Humidity

5 to 95%

Storage Altitude

-1,000 to 40,000' / -304.8 to 12,192 m


BSMI, CE, FCC, RCM, VCCI *as per Manufacturer




Status Monitoring

LED Indicator


1 x 92 mm Fan

Material of Construction



10.2 x 9.4 x 7.1" / 25.9 x 23.9 x 18 cm


27.9 lb / 12.7 kg

Packaging Info

Package Weight

35.355 lb

Box Dimensions (LxWxH)

18.6 x 17.8 x 16.6"

WARNING: This product may expose you to chemicals which are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov
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