Thunderbay 4 Bay Professional-Grade RAID Enclosure


Professional-Grade Enclosure

Mac / PC / Thunderbolt / RAID Ready
The Speed You Need
Add vast amounts of high-performance storage capacity to any Thunderbolt equipped Mac or PC with the ThunderBay IV. Utilize each of the four drives independently, or use the software RAID of your choice to setup the ThunderBay IV for multi-drive performance or data redundancy. Take A/V post-production, photography, data management, and backup to new heights with sustained data rates of up to 895MB/s*.
Real-Time Editing
You can now work at the full speed of the drive. Create, backup your data, or edit multiple uncompressed video streams faster and more efficiently than ever.
Mix & Match Drives & RAID
With four drive bays you can choose to install all hard drives, all SSDs, or a mixture of both hard drives and SSDs. You can setup two or three drives as a software RAID and leave any remaining drives in independent mode, or setup two software RAIDs.
Solid, Reliable, and Cool
The ThunderBay IV has a durable aluminum enclosure that protects the four internal drives while keeping them cool thanks to its superior heat dissipation. A locking faceplate keeps the drives secure.
The Perfect Mac Pro Migration Drive
You don't have to give up your drive bays when migrating from a Mac Pro tower to the new Mac Pro. Simply plug in the ThunderBay IV to your new Mac Pro and you'll have four drives with a Thunderbolt interface capable of running all the drives at full speed – just as if they were installed internally.
Thunderbolt Daisy-chain Capable
Add high-performance features by daisy chaining up to six devices plus one high-resolution display. Of course, the biggest benefit is even when you use a ThunderBay IV, you will still have an available Thunderbolt port.
Key Features
  • Space for 4 independently mounted/enumerated drives
  • 2 Thunderbolt ports for daisy-chaining
  • RAID ready
  • Durable aluminum enclosure with fan
  • High-Quality, Certified, Double-Shielded 1 Meter Thunderbolt cable


Includes the Powerful SpeedTools Utility Suite for Mac
The comprehensive Mac utility used by professionals for accurate Mac diagnosis and maintenance.


  • OWC ThunderBay IV High-performance 4-bay Thunderbolt drive
  • High-Quality, Certified, Double-Shielded 1 Meter Thunderbolt cable
  • External UL listed 3 prong power cable
  • 2 keys for front panel lock
  • User guide
  • Utility software bundle for Mac and PC
  • OWC 1 Year Solution Warranty with 48-Hour Turnaround Time


Product Specifications:


  • Thunderbolt

Interfaces Supported

  • Thunderbolt

JBOD / RAID Support

  • JBOD: Utilize each of the four drives independently
  • RAID: Use the software RAID of your choice to setup the ThunderBay IV for multi-drive performance or data redundancy.

Port Configuration

  • Thunderbolt – (2) Thunderbolt ports

Max Data Transfer Rate

  • Thunderbolt – 10Gb/sec


Port/Interface Bootability

  • It can be used as an external startup drive using Thunderbolt port.

System Requirements

  • Works with any Mac, PC, or device that supports a Thunderbolt drive.

Power Supply

  • UL Listed, Universal auto-switching power supply

Software Included

External Case Dimensions

  • 9.65″(D) x 5.31″(W) x 6.96″(H)
  • 245.11mm x 134.87mm x 176.78mm

Enclosure Weight (no accessories)

  • Approximately 8.6 pounds (3.9kg)

















Operating Environment:


  • (operating) 5°C – 42°C (41°F – 107°F)
  • (non-operating) -40°C – 65°C (-40°F – 149°F)

Relative Humidity

  • (operating) 8% – 90% RH (Non-condensing)
  • (non-operating) 5% – 95% RH (Non-condensing)


  • 65G 2mS; (non-operating) 175G 2mS


  • (operating) 1.0G (5 – 300Hz)
  • (non-operating) 5.0G (5 – 500Hz)