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We recommend 8.0TB OWC ThunderBay 4, four-drive HDD with dual Thunderbolt 2 ports, RAID-ready Solution (Mfr P/N: TB2IVT08.0S) from Other World Computing for $729.99 as a suitable alternative.

OWC ThunderBay IV

8.0TB High-Performance 4-Bay
Thunderbolt Drive

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 reading speeds of 895MB/s* and writing speeds of 858MB/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.
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
  • Four (4) independently mounted/enumerated high-performance drives
  • 2 Thunderbolt ports for daisy-chaining
  • RAID ready
  • Durable aluminum enclosure with fan
  • High-Quality, Certified, Double-Shielded 1 Meter Thunderbolt cable

Speedtools
Includes the Powerful SpeedTools Utility Suite for Mac
The comprehensive Mac utility used by professionals for accurate Mac diagnosis and maintenance. Click the SOFTWARE tab below to learn more »

Includes

  • 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 3 Year Solution Warranty with 48-Hour Turnaround Time
  • Complimentary 1 Year Level 1 Data Recovery

Gallery

Product Specifications:

Chipset

  • 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.

Standard Mechanism

    2.0TB Toshiba DT01ACAxx Series Specifications:

    Specifications

    Form Factor
    3.5″ HDD
    Interface
    SATA 6GB/s
    Capacity1
    2.0TB
    Formatted Capacity2
    1862GiB
    Rotational Speed
    7,200 RPM
    Cache / Data Buffer
    64MB
    Manufacturer Model Number
    HDKPC09
    RoHS Compliant
    Yes
    Format

    Physical

    Height (max)
    26.1mm (1.03″)
    Width (max)
    101.6mm (4.00″)
    Length (max)
    147mm (5.79″)
    Weight (typical)
    680g (1.499 lbs.)

    Reliability3

    Contact Start-Stops
    300,000

    Performance

    Transfer Rate (Max)
    6 Gb/sec
    Track-to-track Seek
    0.5ms

    Power

    Read Power
    6.4 Watts
    Write Power
    6.4 Watts
    Idle Mode
    5.2 Watts
    Standby Mode
    1.0 Watts
    Sleep Mode
    1.0 Watts

    Environmental (Operating)

    Shock
    70 G max at 2ms
    Ambient Temperature (°F)
    32°F to 107°F
    Ambient Temperature (°C)
    0°C to 42°C
    Vibration
    0.67 G, with 5 - 500 Hz
    Altitude
    -304.8 m to 3,048 m (-1,000 ft to 10,000+ ft)

    Environmental (Non-Operating)

    Shock
    300 G max at 2ms
    Ambient Temperature (°F)
    -40°F to 158°F
    Ambient Temperature (°C)
    -40°C to 70°C
    Vibration
    1.04 G, with 2 - 200 Hz
    Altitude
    -304.8 m to 12,192 m (-1000 ft to 40,000+ ft)

    Acoustics

    Idle (Typical)
    2.7 bels
    Seek (Typical)
    2.8 bels
    1. 1GB = 1,000,000,000 bytes. Total accessible capacity varies depending upon operating environment (typically 5-10% less). The actual total capacity will depend on your own defined file settings/preferences.
    2. In terms of standard gigabytes, 1GiB ≈ 1.074GB and refers to the actual formatted capacity of shown under Mac OS 10.5 or earlier and Microsoft Windows OS.
    3. Specific application environments such as temperature and duty cycle will affect the overall reliability rates.
  • 4 x 2.0TB* Toshiba DT01ACAxx Series Hard Disk Drives**

  • *1GB = 1,000,000,000 bytes. Total accessible capacity varies depending upon operating environment (typically 5-10% less). The actual total capacity will depend on your own defined file settings/preferences.

    **OWC reserves the right to replace or upgrade to equivalent or better components.

Drive Rotation Speed

  • 7200 RPM

Drive Cache Size

  • 64MB per drive, 256MB total for the solution

Port Configuration

  • Thunderbolt – (2) Thunderbolt ports

Format

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.

Software Included

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).

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)

Product Manual

Operating Environment:

Temperature

  • (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)

Shock

  • 65G 2mS; (non-operating) 175G 2mS

Vibration

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

Warranty

3 Year OWC Solution Limited Warranty

The best warranty is one you never have to use, but should the need occur – OWC is proud to provide a superior level of support and warranty coverage to our customers. Even when not used, we understand the peace of mind afforded by a longer warranty period. OWC's industry leading coverage is a testament to our confidence in the reliability of the solutions that we offer. OWC solutions are engineered to demanding quality standards in order to deliver the most reliable, highest performance available on the market in each storage category.

View more information about the 3 Year OWC Solution Limited Warranty

Note: Do not disassemble or otherwise open your OWC solution prior to the conclusion of the 3 Year OWC Solution Limited Warranty period. Doing so will void the remainder of the OWC warranty.

Manufacturer provided specifications for Other World Computing p/n TBIVT08.0S UPC#: 794504327755

Software

Prosoft Macworld 4.5 miceProsoft
Prosoft Engineering® Data Backup 3 for OS X v10.2.8 or later
Backup Made Easy. Data Backup makes it easy to backup to FireWire and USB drives, network drives, CDs and even DVDs. Make schedules so you don't need to 'think' about backing up... It does it for you.
A $59.00 Value! View detailed software info, or click here to purchase softwareseparately from solution
Novastor
NovaStor NovaBACKUP® Solution for Windows®
NovaBACKUP has been helping millions of users recover from data loss and disasters for over 18 years. Feature rich, NovaBACKUP provides a powerful backup solution. Built-in support for hundreds of the most popular storage devices and a step-by-step backup and restore wizard makes NovaBACKUP extremely easy to use. Requires Windows 2000 or later.
A $49.95 Value! View detailed software info
Intech SpeedTools Utilities
Intech® SpeedTools Utilities™
Intech SpeedTools consists of a suite of utilities managed by an application which controls the launching, documentation and version control of each individual component utility, such as Disk Defrag and QuickBack. An easy-to-use installation and removal application is provided to make installation a snap, yet powerful enough to allow you to customize which utility component set you would like to create.
An $89.95 Value! View detailed software info, or click here to purchase software separately from solution

Benchmarks

Click any of the benchmarks below to view the results.
RAID 0 (Striped) Test Results

Customer Ratings

Write a Review 4.8 / 5 75 out of 79 (95%) reviewers would recommend this product
1 2 3 4
Verified Buyer
Reviewer: Anonymous Location: Gold Coast, Australia Age: 45-54 Experience Level: Power User Owned Product: 1-3 months
Rating: 4/5 Excellent JBOD/RAID Enclosure May 25, 2014 I have this setup with 4 x 2TB Toshiba HDDs in Software RAID0. Disappointed that OWC doesn't have a hardware RAID enclosure with thunderbolt, hope that's in the pipeline.

Despite not having hardware RAID, the performance from the Software RAID0 is extraordinarily good, achieving over 720MB/sec read & 690MB/sec write (using BlackMagic Disk Speed Test)

I would recommend this item to a friend! This review is from (*) OWC ThunderBay IV, four-bay drive enclosure with dual Thunderbolt ports, RAID-ready Enclosure.

Verified Buyer
Reviewer: Anonymous Location: Midwest Age: 55-65 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Thunderbay IV good unit April 28, 2014 I received this unit to use with my 2013 i7 iMac. I have 6 WD Enterprise drives/ This unit holds 4 of them. I have 2 of the drives in a RAID 0 config (Softraid) and the other 2 as JBOD. The unit is plenty fast with 4 drives in RAID 0. It gives big bang for the buck. and the power supply is internal. No external bricks. It does use 4 individual data channels to get this fast performance. But BE WARNED, this is not in the manual. If you run Windows via Bootcamp, (I run Win 7) and this device is plugged into your thunderbolt port, you WILL NOT be able to get Windows to boot. If you run another external box that uses 3 data channels then no problem. But 4 and it's not gonna work. If you have a Mac w/Thunderbolt 2 not a problem. Thunderbolt 1 and there's this limitation.Good product other than that misgiving. They said they would change their advertising to state this .... Soon all Macs will be thunderbolt 2. Let me repeat, this limitation is only if you run Windows via bootcamp. (parallels I don't know?) But it works great on the Mac side of things.

I would recommend this item to a friend! This review is from (*) OWC ThunderBay IV, four-bay drive enclosure with dual Thunderbolt ports, RAID-ready Enclosure.

Verified Buyer
Reviewer: Anonymous Location: Miami, Fl.
Rating: 5/5 Fantastic Box April 28, 2014 Fill this up with big SSD's and you will love it. It works perfectly and is much quieter than I thought it would be. Very low fan noise, so low, I can't hear it and that's what I wanted. I got so tired of listening to loud spinning hard drives and the fan to cool them. This box with SSD's is not only fast with Raid 0 but is quiet too. It is so nice.

I would recommend this item to a friend! This review is from (*) OWC ThunderBay IV, four-bay drive enclosure with dual Thunderbolt ports, RAID-ready Enclosure.

Verified Buyer
Reviewer: Anonymous Location: Scottsdale, AZ Age: 55-65 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 Flawless operation March 27, 2014 I used the ThunderBay IV to migrate two hard drives from my 2006 MacPro (1.1 version) and added a 3TB and 4TB Toshiba drive. The larger of the Toshiba drives is being utilized for Time Machine. This arrangement has worked very well in conjunction with the new Mac Pro (2013.) I have placed my iTunes library on the smaller of the Toshiba drives and there is no apparent latency in playback. The fan is rather quiet. The quality of the enclosure is very robust.

Excellent product and very pleased with its function. Highly recommended.

I would recommend this item to a friend! This review is from (*) OWC ThunderBay IV, four-bay drive enclosure with dual Thunderbolt ports, RAID-ready Enclosure.

Verified Buyer
Reviewer: Anonymous Location: Hawaii Age: 25-34 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Just what I've been waiting for March 11, 2014 Not many people I know are familiar with the Netgear ReadyNAS NV+ V2(the system before my ThunderBay IV). I got that system a while back but there was always one thing about it that bothered me. It was soooooooooooooo slow! I kept looking for something with similar features but with a speed boost, possibly one to take advantage of my unused (until now) Thunderbolt ports. Leave it to my good friends at OWC to not only offer EXACTLY what I wanted at a comparable price, but to also give me the option to use my already purchased HDDs from my previous ReadyNAS. Most of the other companies selling comparable products don't give the consumer that option. I've had this for a good month now and it's still going strong. I'm streaming movies, using it for Time Machine backups and all through the Thunderbolt ports. I love it!

Thanks OWC!

I would recommend this item to a friend! This review is from (*) OWC ThunderBay IV, four-bay drive enclosure with dual Thunderbolt ports, RAID-ready Enclosure.

Verified Buyer
Reviewer: Anonymous Location: The Netherlands Age: 35-44 Experience Level: Power User Owned Product: less than a month
Rating: 4/5 Fast and Noisy March 5, 2014 The Thunderbay is very well build! It's very fast, but i'm now thinking of how to get rid of the blowing sound of the TBay. After buying the Mac Pro 6core i needed to bring back my capacity of storage, and the TBay did that PERFECT! But it also brought back the same Decibels as my old Mac Pro 2009 ..

Now i need a 7 meter Thunderbolt cable in white to fix that, which isn't easy to get! If there was a 100$ option to fix that i would have given the ThunderBay iV a 5 star rating!

ps. Service of OWC is AWESOME! I had a problem with one HDD bay inside the Thunderbay, i send in a photo of the problem and i had a new bay within 4 days send to The Netherlands!

.... get it! If you need the space, but also get a very long Thunderbolt cable! I need to find one in white of 7 meters... If anyone knows something :D ...

I would recommend this item to a friend! This review is from (*) OWC ThunderBay IV, four-bay drive enclosure with dual Thunderbolt ports, RAID-ready Enclosure.

Verified Buyer
Reviewer: Anonymous Location: Central NY Age: Over 65 Experience Level: IT Professional Owned Product: less than a month
Rating: 4/5 A well made product February 26, 2014 I am using the device as a RAID 0 array for backup storage and temporary files. It performs well and is extremely quiet in operation. Data throughput is extremely fast for an external unit, far exceeding the firewire 800 units I have used in the past. Like all Thunderbolt units it is a little pricey.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Saint Louis, MO Age: 35-44 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 It's a speed demon February 26, 2014 I just upgraded my office computer to the new Mac Pro and was forced to upgrade my RAID. After looking at Pegasus 2 and LaCie products I decided I just needed the fastest possible RAID 0 setup possible. I checked out all of the speed benchmarks and it looked like the Thunderbay was winning. I purchased it with 8 TB of storage and I'm getting between 700-725 Mb/s on Read and Write speeds. Couldn't be happier at this point. No sleep issues or ejection problems in Mavericks. If I had the cash I'd quickly buy another for backup.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: NY Age: 35-44 Experience Level: Power User Owned Product: less than a month
Rating: 4/5 This product is well built and fast! February 11, 2014 The first thing I noticed as I was unboxing this unit was the excellent build quality of the unit. The aluminum enclosure is heavy gauge, the drive sleds are easy to pop in and out and feel very solid when in place. I did receive a unit with a cross threaded quick release screw but it still works well. I striped 4 7200rpm seagate barracuda drives and ran Blackmagic Disk Speed Test. I was able to get sustained read and write scores that hovered between 550-600Mbs! I found this very impressive for only using medium quality drives in the enclosure. I can only imagine the speed I would get with Raptors or ssds. The fan is a bit noisy but not terrible and it moves a lot of air through the machine making me feel safe about keeping those disks cool. I have it on a daisy chain with another TB drive and everything works great. I do wish there was the ability for hardware raid on the unit but for the money, this enclosure gave me the best bang for my buck considering that I already owned all those drives.

I would recommend this item to a friend! This review is from (*) OWC ThunderBay IV, four-bay drive enclosure with dual Thunderbolt ports, RAID-ready Enclosure.

OWC 8.0TB ThunderBay IV Mfr P/N: TBIVT08.0S OWC SKU: OWCTBIVT08.0S High-Performance 4 Bay Thunderbolt Drive 60 Day OWC Limited Warranty
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*895MB/s achieved with four Toshiba 2TB 7200RPM drives (TOSDT01ACA200) running in a software performance RAID