OWC ThunderBay 4

4-bay Professional-Grade Enclosure
Dual Thunderbolt 2 | RAID Ready | 4 Drive Bays | Mac
The Speed You Need
Empower your creative production workflow with this super-fast, 4-Bay, RAID-ready drive with dual Thunderbolt ports. Add vast amounts of high-performance storage with ThunderBay 4. Utilize each of the four internal drives independently, or use the software RAID of your choice to setup a multi-drive array for high-performance or data-redundancy.
Edit, Experiment, Create, Design
With ThunderBay's performance capabilities you can complete projects faster, have more time to experiment, and push your creations to the next level.

Enhance editing capabilities in video apps like Apple Final Cut Pro, Adobe Premiere, and Avid Media Composer. Empower greater audio production capabilities in audio apps like Avid Pro Tools and Logic Pro X. Edit large photos in apps like Adobe Photoshop, and browse large photo libraries in apps like Apple Aperture and Adobe Lightroom. Simply put, you can do more with a ThunderBay 4 enhanced workflow, and with a RAID 5 array you get data redundancy on top of great performance!
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.


  • Mechanisms Supported
    Four 3.5" SATA hard drives up to 6.0TB
    Four 2.5" SATA hard drives or SSDs (NewerTech AdaptaDrive required for install, sold separately)
    Thunderbolt 2
    Interfaces Supported
    Thunderbolt 2
    JBOD / RAID Support
    JBOD: Utilize each of the four drives independently
    RAID: Use any Software RAID of your choice to setup the ThunderBay 4 for multi-drive performance or data redundancy.
    Port Configuration
    Thunderbolt – (2) Thunderbolt 2 ports
    Max Data Transfer Rate
    Thunderbolt 2 – 20Gb/sec
    Port/Interface Bootability
    It can be used as a Thunderbolt startup drive on Macs running Mac OS X.
    System Requirements
    Any Mac with a Thunderbolt port running OS X 10.9 or later.
    Any PC running Windows 7 Service Pack 1 or later with a Thunderbolt port. Driver required for proper installation. (3.3 MB ZIP)
    Boot Camp is not supported. The Thunderbolt certification process does not include Macs running Windows through Boot Camp.
    Power Supply
    Internal UL Listed U.S./International Auto Switching 100 ~ 240v, 50/60Hz input, 12 Volt 16.66 Amp output Power Supply (power cords for International use sold separately).
    Software Included
    Intech® Hard Disk SpeedTools Utilities™ OEM (For Mac OS 8.6 – X only)
    ProSoft Engineering® Data Backup for Mac OS X v10.2.8 or later
    Over 1.5GB of Freeware, Shareware, Public domain software installed
    Product Manual
    OWC ThunderBay 4 Manual (2.9 MB PDF)
    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)