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OWC

ThunderBay 4
0TB 4-Drive HDD Storage Enclosure with Dual Thunderbolt 3 Ports

Used Condition | OWC Tested

Mac / PC / Thunderbolt 3 / DisplayPort 1.2
The Speed You Need
All New Design for Power and Performance
ThunderBay 4, OWC's flagship 4-bay RAID powerhouse is bigger and faster than ever before. Now with the unbelievable performance of Thunderbolt 3 up to 1550MB/s sustained performance1it's the ultimate workhorse external storage solution. Not only faster, the new ThunderBay 4 Thunderbolt 3 is now natively compatible with both 2.5" and 3.5" drives, and with a redesigned chassis, it's even cooler and quieter too.
Edit, Experiment, Create, Design
Designed with performance in mind and engineered to harness the power of Thunderbolt 3, ThunderBay 4 is an incredibly flexible external solution with the throughput to support multi-stream compressed 4K video and other bandwidth-intensive operations. ThunderBay 4 is highly configurable to perfectly match your performance needs. Choose between traditional hard drives or Solid State Drives. Use each drive independently, or in the RAID configuration of your choice for the optimal balance of performance and data-redundancy. Get the most out of your storage, take the brakes off your workflow, and do more with a ThunderBay 4.
Certified and Tested
Each ThunderBay 4 solution undergoes OWC's multi-hour drive "burn-in" performance certification procedure prior to shipping. This ensures your ThunderBay 4 arrives operating properly, ready for demanding use.
4 drive bays plus so much more.
Time-tested Cooling
Built on OWC's time-tested enclosure cooling technology, ThunderBay 4 utilizes an open "flow-thru" vented design with an oversized 92 mm, low-turbulence, noise-quieting fan to keep the drives running cool and reliably.
Multi-Drive
Daisy-chain up to six ThunderBay 4s for massive storage capabilities and increased performance, or connect multiple ThunderBay 4s to multiple Thunderbolt 3 ports to achieve exponential speed capabilities.
Vibration Dampened
ThunderBay 4's drive isolating design reduces sonic resonance, and is aided by over-sized, rugged, vibration-absorbing, non-skid feet.
DisplayPort 1.2 Support
Dual Thunderbolt 3 ports let you connect the display of your choice that your computer can support, including 4K displays.
OWC Thunderbolt 3 Cable
ThunderBay 4 comes with a certified OWC Thunderbolt 3 cable.
More Powerful With SoftRAID
Need more power and protection? Choose a solution that includes OWC's powerful SoftRAID RAID software.
SoftRAID is the most powerful, intuitive software RAID utility on the market. Multiple RAID levels let you select the RAID level that fits you or your project’s needs best. If you need maximum volume capacity, optimum drive performance, data protection, or a combination of attributes, SoftRAID has you covered.
Packed with features like drive validation, verification and failure prediction—SoftRAID includes features you simply don’t get with hardware RAID. It’s like having a datacenter on your desktop! From home users looking to protect photos and documents to professionals needing to protect and quickly access projects, SoftRAID is the perfect solution. Learn more about the power of SoftRAID XT.
Try SoftRAID COMPLETELY FREE for 14 Days
Start protecting yourself and your data today! Get all of SoftRAID's great disk checking and monitoring features, plus the fastest and most efficient software RAID there is. Download and try SoftRAID for FREE.
Backed by OWC
You can rely on OWC's award-winning support for the ThunderBay 4 solution. Plus, ThunderBay 4 comes with an OWC Limited Warranty.
  • Sustained read speeds, dependent on mechanism installed.
  • Advanced RAID features require RAID management software (such as OWC SoftRAID, sold separately).

Product Specifications

Specifications
  • Mechanisms Supported
    • Four (4) 2.5-inch or 3.5-inch SATA drives
  • Hot Swap Support
    • Yes
  • Chipset
    • SATA Controller: (2) ASM1062
    • Thunderbolt 3: (1) Intel DSL6540
  • Data Transfer Rate (Maximum)
    • Thunderbolt 3 : 40 Gb/s (or 5000 MB/s)
  • Plug and Play
    • Yes
  • Reach Certification
    • Yes
RAID
  • RAID Capable
    • Yes
  • RAID Levels Supported
    • JBOD
  • RAID Features
    • Software RAID
Compatibility
  • Mac OS Compatibility
    • macOS 10.12 Sierra
    • macOS 10.13 High Sierra
    • macOS 10.14 Mojave
    • macOS 10.15 Catalina
    • macOS 11.x Big Sur
  • PC OS Compatibility
    • Windows 10 64-bit Edition
  • Other Requirements
    • SoftRAID XT works with macOS 10.12 or later and Windows 10. Intel-based Macs require macOS 10.12 or later. M1 Macs require macOS 11.1 or 11.3 and later. macOS 11.3 is currently available as a public beta.
Power
  • Power Supply
    • Internal UL-listed universal auto-switching power supply
  • AC Input
    • 100-230V
  • External Power Adapter
    • No
Physical
  • Number of Bays
    • 4
  • Device Ports
    • (2) Thunderbolt 3 (USB-C) Ports
    • (1) DisplayPort Port
  • Cooling
    • (1) 92mm Temperature-controlled cooling fan
  • Security Slot
    • Yes
  • Power Button
    • Yes
  • Power/Activity LED
    • Yes
  • Housing Color
    • Black
  • Housing Material
    • Aluminum
  • Dimensions
    • Height: 17.7 cm (7.0 in)
    • Length: 24.5 cm (9.6 in)
    • Width: 13.5 cm (5.3 in)
  • Weight
    • 3.9 kg (8.60 lbs)
Environmental
  • Ambient Temperature
    • Operating: 50°F to 95°F (10°C to 35°C)
    • Non-Operating: -40°F to 149°F (-40°C to 65°C)
  • Humidity
    • Operating: 8% to 90% non-condensing
    • Non-Operating: 5% to 95% non-condensing
Manufacturer provided specifications for OWC p/n OWCTB3IVKIT000U

Gallery

This product is compatible with... Learn how to find your Mac's model ID
Mac Pro
Mac Pro Rack (Early 2020)
(January 2020)
Model ID: MacPro7,1
3.5GHz 8-Core
Install videos coming soon
Mac Pro
Mac Pro Rack (Early 2020)
(January 2020)
Model ID: MacPro7,1
3.3GHz 12-Core
Install videos coming soon
Mac Pro
Mac Pro Rack (Early 2020)
(January 2020)
Model ID: MacPro7,1
3.2GHz 16-Core
Install videos coming soon
Mac Pro
Mac Pro Rack (Early 2020)
(January 2020)
Model ID: MacPro7,1
2.7GHz 24-Core
Install videos coming soon
Mac Pro
Mac Pro Rack (Early 2020)
(January 2020)
Model ID: MacPro7,1
2.5GHz 28-Core
Install videos coming soon
Mac Pro
Mac Pro (Late 2019)
(December 2019)
Model ID: MacPro7,1
3.5GHz 8-Core
Mac Pro
Mac Pro (Late 2019)
(December 2019)
Model ID: MacPro7,1
3.3GHz 12-Core
Mac Pro
Mac Pro (Late 2019)
(December 2019)
Model ID: MacPro7,1
3.2GHz 16-Core
Mac Pro
Mac Pro (Late 2019)
(December 2019)
Model ID: MacPro7,1
2.7GHz 24-Core
Mac Pro
Mac Pro (Late 2019)
(December 2019)
Model ID: MacPro7,1
2.5GHz 28-Core
Mac mini 2020
Mac mini (Late 2020)
(November, 2020)
Model ID: Macmini9,1
Apple M1
Mac mini 2018
Mac mini (Late 2018)
(November, 2018)
Model ID: Macmini8,1
3.6GHz i3, 3.0GHz i5, 3.2GHz i7
iMac Intel
iMac Pro
(27-inch Late 2017)
(December 2017)
Model ID: iMacPro1,1
3.2GHz 8-core, 3.0GHz 10-core, 2.3GHz 14-core, 2.5GHz 18-core
iMac Intel
iMac w/Retina 4.5K display
(24-inch Mid 2021)
(May 2021)
Model ID: iMac21,1; iMac21,2
Apple M1
iMac Intel
iMac w/Retina 5K display
(27-inch Mid 2020)
(August 2020)
Model ID: iMac20,1; iMac20,2
3.1GHz i5, 3.3GHz i5, 3.8GHz i7, 3.6GHz i9
Detailed specs coming soon
iMac Intel
iMac w/Retina 5K display
(27-inch Early 2019)
(March 2019)
Model ID: iMac19,1
3.0GHz i5, 3.1GHz i5, 3.7GHz i5, 3.6GHz i9
iMac Intel
iMac w/Retina 4K display
(21.5-inch Early 2019)
(March 2019)
Model ID:iMac19,2
3.6GHz i3, 3.0GHz i5, 3.2GHz i7
iMac Intel
iMac w/Retina 5K display
(27-inch Mid 2017)
(June 2017)
Model ID:iMac18,3
3.4GHz i5, 3.5GHz i5, 3.8GHz i5, 4.2GHz i7
iMac Intel
iMac w/Retina 4K display
(21.5-inch Mid 2017)
(June 2017)
Model ID:iMac18,2
3.0GHz i5, 3.4GHz i5, 3.6GHz i7
iMac Intel
iMac (21.5-inch Mid 2017)
(June 2017)
Model ID:iMac18,1
2.3GHz i5
MacBook Pro Retina w/ Touch Bar
MacBook Pro (13-inch Touch Late 2020)
(November, 2020)
Model ID: MacBookPro17,1
Apple M1
MacBook Pro Retina w/ Touch Bar
MacBook Pro (13-inch Touch Mid 2020)
(May, 2020)
Model ID: MacBookPro16,3
1.4GHz i5, 1.7GHz i7
Detailed specs coming soon
Install Videos coming soon
MacBook Pro Retina w/ Touch Bar
MacBook Pro (13-inch Touch Mid 2020)
(May, 2020)
Model ID: MacBookPro16,2
2.0GHz i5, 2.3GHz i7
Detailed specs coming soon
Install Videos coming soon
MacBook Pro Retina w/ Touch Bar
MacBook Pro (16-inch Touch Mid 2019)
(November, 2019)
Model ID: MacBookPro16,1 or MacBookPro16,4
2.6GHz i7, 2.3GHz i9, 2.4GHz i9
Install Videos coming soon
MacBook Pro Retina w/ Touch Bar
MacBook Pro (15-inch Touch Mid 2019)
(May, 2019)
Model ID: MacBookPro15,1; MacBookPro15,3
2.6GHz i7, 2.3GHz i9, 2.4GHz i9
Install Videos coming soon
MacBook Pro Retina
MacBook Pro (13-inch Touch Mid 2019)
(July, 2019)
Model ID: MacBookPro15,4
1.4GHz i5, 1.7GHz i7
Install Videos coming soon
MacBook Pro Retina
MacBook Pro (13-inch Touch Mid 2019)
(May, 2019)
Model ID: MacBookPro15,2
2.4GHz i5, 2.8GHz i7
Install Videos coming soon
MacBook Pro Retina w/ Touch Bar
MacBook Pro (15-inch Touch Mid 2018)
(July, 2018)
Model ID: MacBookPro15,1
2.2GHz i7, 2.6GHz i7, 2.9GHz i9
Install Videos coming soon
MacBook Pro Retina
MacBook Pro (13-inch Touch Mid 2018)
(July, 2018)
Model ID: MacBookPro15,2
2.3GHz i5, 2.7GHz i7
Install Videos coming soon
MacBook Pro Retina w/ Touch Bar
MacBook Pro (15-inch Touch Mid 2017)
(June, 2017)
Model ID: MacBookPro14,3
2.8GHz i7, 2.9GHz i7, 3.1GHz i7
MacBook Pro Retina
MacBook Pro (13-inch Touch Mid 2017)
(June, 2017)
Model ID: MacBookPro14,2
3.1GHz i5, 3.3GHz i5, 3.5GHz i7
MacBook Pro Retina
MacBook Pro (13-inch Retina display Mid 2017)
(June, 2017)
Model ID: MacBookPro14,1
2.3GHz i5, 2.5GHz i7
MacBook Pro Retina
MacBook Pro (15-inch Touch Late 2016)
(October, 2016)
Model ID: MacBookPro13,3
2.6GHz, 2.7GHz, 2.9GHz
MacBook Pro Retina
MacBook Pro (13-inch Touch Late 2016)
(October, 2016)
Model ID: MacBookPro13,2
2.9GHz, 3.1GHz, 3.3GHz
MacBook Pro Retina
MacBook Pro (13-inch Retina display Late 2016)
(October, 2016)
Model ID: MacBookPro13,1
2.0GHz, 2.4GHz
MacBook Air
MacBook Air (13-inch Late 2020)
(November, 2020)
Model ID: MacBookAir10,1
Apple M1
MacBook Air
MacBook Air (13-inch Early 2020)
(March 2020)
Model ID: MacBookAir9,1
1.1GHz i3, 1.1GHz i5, 1.2GHz i7
MacBook Air
MacBook Air (13-inch Mid 2019)
(July 2019)
Model ID: MacBookAir8,2
1.6GHz i5
MacBook Air
MacBook Air (13-inch Late 2018)
(November 2018)
Model ID: MacBookAir8.1
1.6GHz i5
PC Desktop
PC Compatible
Compatible with Intel / AMD based desktop/laptop PCs with built-in Thunderbolt 3 ports.
Extended Compatibility... Learn how to find your Mac's model ID
Add a Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) adapter to extend compatibility to the following machines:
Mac Pro
Mac Pro
(December, 2013)
Model ID: MacPro6,1
2.7GHz 3.0GHz, 3.5GHz, 3.7GHz
iMac Intel
iMac w/Retina 5K display
(27-inch Late 2015)
(October 2015)
Model ID:iMac17,1
3.2GHz i5, 3.3GHz i5, 4.0GHz i7
iMac Intel
iMac w/ Retina 4K display (21.5-inch Late 2015)
(October 2015)
Model ID:iMac16,2
3.1GHz i5, 3.3GHz i7
iMac Intel
iMac (21.5-inch Late 2015)
(October 2015)
Model ID: iMac16,1 or iMac16,2
1.6GHz i5, 2.8GHz i5, 3.1GHz i5, 3.3GHz i7
iMac Intel
iMac w/Retina 5K display
(27-inch Mid 2015)
(May 2015)
Model ID: iMac15,1
3.3GHz i5, 3.5GHz i5, 4.0GHz i7
iMac Intel
iMac w/Retina 5K display
(27-inch Late 2014)
(October 2014)
Model ID: iMac15,1
3.5GHz i5, 4.0GHz i7
iMac Intel
iMac (27-inch Late 2013)
(September 2013)
Model ID: iMac14,2
3.2GHz i5, 3.4GHz i5, 3.5GHz i7
iMac Intel
iMac (27-inch Late 2012)
(October 2012)
Model ID: iMac13,2
2.9GHz i5, 3.2GHz i5, 3.4GHz i7
iMac Intel
iMac (27-inch Mid 2011)
(May 2011)
Model ID: iMac12,2
2.7GHz i5, 3.1GHz i5, 3.4GHz i7
iMac Intel
iMac (21.5-inch Mid 2014)
(June 2014)
Model ID: iMac14,4
1.4GHz i5
iMac Intel
iMac (21.5-inch Late 2013)
(September 2013)
Model ID: iMac14,3
2.9GHz i5 or 3.1GHz i7
iMac Intel
iMac (21.5-inch Late 2013)
(September 2013)
Model ID: iMac14,1
2.7GHz i5
iMac Intel
iMac (21.5-inch Early 2013)
(March 2013)
Model ID: iMac13,1
3.3GHz i3
iMac Intel
iMac (21.5-inch Late 2012)
(October 2012)
Model ID: iMac13,1
2.7GHz i5 , 2.9GHz i5, 3.1GHz i7
iMac Intel
iMac (21.5-inch Late 2011)
(August 2011)
Model ID: iMac12,1
3.1GHz i3
iMac Intel
iMac (21.5-inch Mid 2011)
(May 2011)
Model ID: iMac12,1
2.5GHz i5 , 2.7GHz i5, 2.8GHz i7
Mac mini Intel
Mac mini (Late 2014)
(October, 2014)
Model ID: Macmini7,1
1.4GHz, 2.6GHz, 2.8GHz, 3.0GHz
Mac mini Intel
Mac mini (Late 2012)
(October, 2012)
Model ID: Macmini6,1 & Macmini6,2
2.3GHz, 2.5GHz, 2.6GHz
Mac mini Intel
Mac mini (Late 2012 Server)
(October, 2012)
Model ID: Macmini6,2
2.3GHz, 2.6GHz
Mac mini Intel
Mac mini (Mid 2011)
(July, 2011)
Model ID: Macmini5,1 & Macmini5,2
2.3GHz, 2.5GHz, 2.7GHz
Mac mini Intel
Mac mini (Mid 2011 Server)
(July, 2011)
Model ID: Macmini5,3
2.0GHz
MacBook Pro Retina
MacBook Pro (15-inch Retina display Mid 2015)
(May, 2015)
Model ID: MacBookPro11,4; MacBookPro11,5
2.2GHz, 2.5GHz, 2.8GHz
MacBook Pro Retina
MacBook Pro (13-inch Retina display Early 2015)
(March, 2015)
Model ID: MacBookPro12,1
2.7GHz, 2.9GHz, 3.1GHz
MacBook Pro Retina
MacBook Pro (13-inch Retina Display 2013 - 2014)
(October, 2013 - July, 2014)
Model ID: MacBookPro11,1
2.4GHz, 2.6GHz, 2.8GHz, 2.9GHz, 3.0GHz
MacBook Pro Retina
MacBook Pro (15-inch Retina Display 2013 - 2014)
(October, 2013 - July, 2014)
Model ID: MacBookPro11,2
2.0GHz, 2.2GHz, 2.5GHz, 2.8GHz
MacBook Pro Retina
MacBook Pro (15-inch Retina Display 2013 - 2014)
(October, 2013 - July, 2014)
Model ID: MacBookPro11,3
2.3GHz, 2.5GHz, 2.6GHz, 2.8GHz
MacBook Pro Retina
MacBook Pro (15-inch Retina Display 2013)
(January, 2013)
Model ID: MacBookPro10,1
2.4GHz, 2.7GHz, 2.8GHz
MacBook Pro Retina
MacBook Pro (13-inch Retina Display 2013)
(January, 2013)
Model ID: MacBookPro10,2
2.5GHz, 2.6GHz, 2.9GHz, 3.0GHz
MacBook Pro Retina
MacBook Pro (13-inch Retina Display 2012-2013)
(October, 2012)
Model ID: MacBookPro10,2
2.5GHz, 2.9GHz
MacBook Pro Retina
MacBook Pro (15-inch Retina Display 2012)
(June, 2012)
Model ID: MacBookPro10,1
2.3GHz, 2.6GHz, 2.7GHz
MacBook Pro Unibody
MacBook Pro (15-inch 2012)
(June, 2012)
Model ID: MacBookPro9,1
2.3GHz, 2.6GHz, 2.7GHz
MacBook Pro Unibody
MacBook Pro (13-inch 2012)
(June, 2012)
Model ID: MacBookPro9,2
2.5GHz, 2.9GHz
MacBook Pro Unibody
MacBook Pro (17-inch 2011)
(October, 2011)
Model ID: MacBookPro8,3
2.4GHz, 2.5GHz
MacBook Pro Unibody
MacBook Pro (15-inch 2011)
(October, 2011)
Model ID: MacBookPro8,2
2.2GHz, 2.4GHz, 2.5GHz
MacBook Pro Unibody
MacBook Pro (13-inch 2011)
(October, 2011)
Model ID: MacBookPro8,1
2.4GHz, 2.8GHz
MacBook Pro Unibody
MacBook Pro (17-inch Early 2011)
(February, 2011)
Model ID: MacBookPro8,3
2.2GHz, 2.3GHz
MacBook Pro Unibody
MacBook Pro (15-inch Early 2011)
(February, 2011)
Model ID: MacBookPro8,2
2.0GHz, 2.2GHz, 2.3GHz
MacBook Pro Unibody
MacBook Pro (15-inch Early 2011)
(February, 2011)
Model ID: MacBookPro8,2
2.0GHz, 2.2GHz, 2.3GHz
MacBook Air
MacBook Air (13-inch Early 2015)
(March 2015)
Model ID: MacBookAir7,2
1.6GHz i5, 2.2GHz i7
MacBook Air
MacBook Air (11-inch Early 2015)
(March 2015)
Model ID: MacBookAir7,1
1.6GHz i5, 2.2GHz i7
MacBook Air
MacBook Air (13-inch Mid 2013)
(June, 2013)
Model ID: MacBookAir6,2
1.3GHz, 1.7GHz
MacBook Air
MacBook Air (11-inch Mid 2013)
(June, 2013)
Model ID: MacBookAir6,1
1.3GHz, 1.7GHz
MacBook Air
MacBook Air (13-inch Mid 2012)
(June, 2012)
Model ID: MacBookAir5,2
1.8GHz, 2.0GHz
MacBook Air
MacBook Air (11-inch Mid 2012)
(June, 2012)
Model ID: MacBookAir5,1
1.7GHz, 2.0GHz
MacBook Air
MacBook Air (13-inch Mid 2011)
(July, 2011)
Model ID: MacBookAir4,2
1.7GHz, 1.8GHz
MacBook Air
MacBook Air (11-inch Mid 2011)
(July, 2011)
Model ID: MacBookAir4,1
1.6GHz, 1.8GHz

Customer Ratings

Write a Review 4.5 / 5 26 out of 32 (81%) reviewers would recommend this product
Verified Buyer
Reviewer: MagnificentAlligator-18115
Rating: 5/5 Good buy! October 4, 2021 Very easy to install drives. Super fast speed. When using a RAID 0 setup, it cuts through the media like butter. Highly recommended.

I would recommend this item to a friend! This review is from OWC ThunderBay 4 Four-Bay External Drive Enclosure with Dual Thunderbolt 3 Ports.

Response from OWC, Support October 6, 2021 "Like Butter"....That is what we like and are happy to hear. Making sure that customer's have the speedy solutions is what we are about. Thanks for that awesome recommendation! Very much appreciated. :)
Verified Buyer
Reviewer: PuppyBoss
Rating: 5/5 Solid Performer September 16, 2021 Really well built, solid construction with minimal frills and near zero plastic. SoftRAID performs well and is intuitive. Backplane to drive connector alignment can occasionally be slightly tricky, and I'd like to see drive cages with low-profile handles to better distribute pull force when removing drives.

Read/Write performance is excellent with NAS HDDs, though this unit really needs SSDs to actually reach peak throughput.

I would recommend this item to a friend! This review is from OWC ThunderBay 4 RAID 5 4-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports, SoftRaid 6 included.

Response from OWC, Support September 16, 2021 Thank you for your review and feedback. We are glad that you are overall happy with your new ThunderBay 4. At this time we are happy to share the feedback you provided to our team for review!
Verified Buyer
Reviewer: HappyPenguin-8836
Rating: 5/5 Best external exclosure, not to mention the fastest and extremely well built. September 13, 2021 Great customer service, responsive and helpful. I know they mostly cater to Apple hardware, but he is hoping they push into the Windows market and make software feature parity, talking about software. Look forward to purchasing more quality hardware and software from the company.

I would recommend this item to a friend! This review is from OWC ThunderBay 4 RAID 5 4-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports, SoftRaid 6 included.

Response from OWC, Support September 14, 2021 Thank you for providing us with your feedback. We are delighted to hear you are pleased with your purchase! We look forward to future purchases with OWC MacSales.
Verified Buyer
Reviewer: mslmdr
Rating: 5/5 Great product and easy setup. September 6, 2021 Up and running in minutes out of the box. Preconfigured for RAID 5. Downloaded the software with the included prepaid serial number (included in the price). Loaded my Lightroom catalog with 60,000+ photos overnight. Surprisingly easy and fast.

I would recommend this item to a friend! This review is from 32TB OWC ThunderBay 4 RAID 5 Four-Drive Enterprise HDD Storage Solution with Dual Thunderbolt 3 Ports.

Response from OWC, Support September 8, 2021 Thank you so much for the 5 star review were really appreciate you taking the time to leave it mslmdr. We are so glad to hear that the unit was easy to set up and meets your needs. Please feel free to contact us if you have any further questions, comments, or concerns. Phone 1-800-275-4576 or +1-815-338-8685 Customer Service/Sales & Technical Support - Monday-Friday (8am-8pm CT) - Saturday & Sunday (Closed) Live Chat Technical Support - Monday-Friday (8am-8pm CT) - Saturday (9am-5pm CT) - Sunday (Closed) Live Chat Customer Service/Sales - Monday-Friday (7am-10pm CT) - Saturday & Sunday (9am-5pm CT). Thanks for choosing OWC, and have a great day!
Verified Buyer
Reviewer: DGC94747
Rating: 5/5 Quiet, fast, easy. August 26, 2021 Sale was fulfilled quickly and arrived double boxed. Enclosure is quiet and trays slide nicely, lock simply but positively. Tray free would be nirvana and purchase of additional trays is a hassle. I’m using as JBOD vs RAID as this will be my video edit workspace while a Drobo is my source and finished project device.

I would recommend this item to a friend! This review is from (*) OWC ThunderBay 4 Four-Bay External Drive Enclosure with Dual Thunderbolt 3 Ports.

Response from OWC, Support August 26, 2021 Thanks for that review and that feedback! We couldn't agree more, solutions need to be quiet, and getting the solution needs to be fast and easy as well. Glad to hear we could help with all three. Always know that if anything is needed OWC is there for you.
Verified Buyer
Reviewer: fredpat4951
Rating: 5/5 Best Backup Device Ever August 25, 2021 I've been using Thunder Bay enclosures from OWC for many, many years. They are durable and reliable with never a problem. The software "Soft Raid" is like the enclosure reliable. Both of these products merit 5 stars.

Fred

I would recommend this item to a friend! This review is from OWC ThunderBay 4 Four-Bay External Drive Enclosure with Dual Thunderbolt 3 Ports.

Response from OWC, Support August 26, 2021 Glad to hear, we really appreciate your loyalty! We'll always be here to assist with future questions or tech needs, thanks again!
Verified Buyer
Reviewer: scspaldo21
Rating: 5/5 Rock Solid. Rocket Fast August 19, 2021 Very well designed and constructed. Responsiveness of Thunderbolt 3 with 10TB of SSD is immediate. Daisy-chain capability a must-have. Well worth the $.

I would recommend this item to a friend! This review is from OWC ThunderBay 4 Four-Bay External Drive Enclosure with Dual Thunderbolt 3 Ports.

Response from OWC, Support August 19, 2021 Hi DistinctArmadillo! I'm glad to hear you're happy with the ThunderBay 4 TB3! It's great to hear from happy customers.
Verified Buyer
Reviewer: danmoch-81624
Rating: 5/5 Fast, relatively quiet, easy to install drives August 19, 2021 I replaced a Mercury Pro Dual (USB+eSATA) Two-Bay Enclosure with the ThunderBay 4. I am not using the RAID feature, I just needed a 4-bay JBOD setup. First of all, compared to the Mercury Pro Dual, the Thunderbay 4 is quieter. I can still hear the drives but significantly more muffled (using same HGST 8TB drives that were in the Mercury). The hard drives were much easier to install in the ThunderBay, since the drives individually screw into a carrier which then slides into the chassis which has a backplane type setup. The Mercury required the drives screwed in to the chassis and two cables plugged into each drive. The ThunderBay also has a built in power supply. The Mercury had an external supply which was just another thing sitting on the floor.

I would recommend this item to a friend! This review is from (*) OWC ThunderBay 4 Four-Bay External Drive Enclosure with Dual Thunderbolt 3 Ports.

Response from OWC, Support August 19, 2021 Thank you very much for your feedback!
Verified Buyer
Reviewer: Silverlaker
Rating: 2/5 Disappointed and would avoid July 13, 2021 The enclosure is noticeably loud. That's the first serious issue. The cable forces me to have it on the desktop and to put it elsewhere requires a $49 longer cable (and even then I'd need to have it in an acoustically dampered enclosure).

My other disappointment is with the design of the front gate on the enclosure. If you don't get the bottom hinges set 'just right' when you close it you'll have a half open door that is next to impossible to correct. I had to ask an electrician neighbor to help correct what he deemed a design flaw.

I learned my lesson and would NOT recommend this enclosure.

This review is from OWC ThunderBay 4 Four-Bay External Drive Enclosure with Dual Thunderbolt 3 Ports.

Response from OWC, Support July 14, 2021 Thank you for choosing OWC for your technical needs. We always appreciate your feedback, and.I will pass this along to our product development department for consideration!
Verified Buyer
Reviewer: GracefulCoral-89810
Rating: 4/5 Good piece of tech July 8, 2021 So far so good on the performance but I’m shocked by how cheap OWC are on the accessories. Both the thunderbolt cable and power cable are ridiculously short. You’ll end up spending an extra $30 on cables unless your unit is able to sit within a few inches of your computer and power supply

I would recommend this item to a friend! This review is from OWC ThunderBay 4 RAID 5 4-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports, SoftRaid 6 included.

Response from OWC, Support July 9, 2021 Thank you for providing us with your feedback! Please let us know if we can be of any further assistance.
Verified Buyer
Reviewer: jfrogue404
Rating: 5/5 It worked good but the raid that came with it was very hard to work. I had to call the help desk and it was not easy to install. July 7, 2021 Make the instructions easy to read and install.

This review is from OWC ThunderBay 4 RAID 5 4-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports, SoftRaid 6 included.

Response from OWC, Support July 9, 2021 Thank you so much for your feedback. We are sorry to hear that you had difficulty loading SoftRAID. I have forwarded your feedback to the appropriate channels and hoping to make it easier for our customers. Please feel free to contact us if you have any further questions, comments, or concerns.
Verified Buyer
Reviewer: bohdanz
Rating: 2/5 What a shocker - design/manufacturing issue June 25, 2021 I can't believe I paid for an enclosure that is designed in such a way that if you don't seat the front door precisely it will get stuck and you will not be able to open or close it - or remove your hard drives unless you ripe the gate open.

Unbelievably frustrating.

Nowhere does OWC mention that it's critical to the process and that if you don't do it just so you have wasted your money on this enclosure.

This review is from OWC ThunderBay 4 Four-Bay External Drive Enclosure with Dual Thunderbolt 3 Ports.

Response from OWC, Support June 25, 2021 We are very sorry to hear that you are unhappy with the design of the ThunderBay4. At this time we would be happy to let our design team know these concerns on your behalf. Going forward if you have any other issues or have any further questions please contact us directly at support@owc.com and we would be happy to work with you directly.
Verified Buyer
Reviewer: eekkff
Rating: 5/5 OWC pleases every time, for 2 decades June 25, 2021 I've been a Customer of OWC since before there were Apple stores, and I continue to buy their high quality Mac accessories. The TB3 is an excellent raid. I love that there is a displayport hub on the back as well. it's quiet, takes up very little desktop space, and is slightly smaller than the Promise Pegasus 2 R4 that it is replacing. The Softraid SW included with my version is super simple to understand.

I would recommend this item to a friend! This review is from (*) OWC ThunderBay 4 RAID 5 4-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports, SoftRaid 6 included.

Response from OWC, Support June 25, 2021 Hi AdorablePiranha! Thanks for the compliment! It's wonderful to hear from loyal customers!
Verified Buyer
Reviewer: MistySalamander-8356
Rating: 5/5 Love it! June 17, 2021 This is the second unit that I've purchased and have added it to my computer system and it's great having more available space for all the video content. The transfer rate is great when working with video and especially now with 4k files and the size of all those files. I've not had any problems with my first Thunder Bay drive that I purchased about four years ago and don't expect any with this new drive! :)

I would recommend this item to a friend! This review is from 48TB OWC ThunderBay 4 RAID 5 4-Drive HDD External Storage Solution with Dual Thunderbolt 3 Ports.

Response from OWC, Support June 17, 2021 Thank you for the review, MistySalamander! It's always great to hear from happy customers!
Verified Buyer
Reviewer: NoKey
Rating: 1/5 Was shipped with no key to open the cabinet. June 14, 2021 Received the item today and found out that the key which opens the lock on the enclosures was not provided. They promised to send me a replacement key, but wouldn't provide any other compensation. Now I have an editor sitting on his hands until the key arrives. Very disappointed.

This review is from OWC ThunderBay 4 Four-Bay External Drive Enclosure with Dual Thunderbolt 3 Ports.

Response from OWC, Support June 17, 2021 Thank you for taking the time to communicate your concerns. Your opinion and experiences are very important to us. We have shipped out the replacement keys and they look like they are currently in transit. I will be sending you reaching out to you by other mean to see if we can resolve this in a different manner. We sincerely apologize for the inconvenience and we will be eagerly be waiting on your reply.
Verified Buyer
Reviewer: DistinctKangaroo-62810
Rating: 5/5 Great support June 12, 2021 Great support and always great selection

I would recommend this item to a friend! This review is from OWC ThunderBay 4 RAID 5 4-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports, SoftRaid 6 included.

Verified Buyer
Reviewer: Babysnot
Rating: 5/5 Great Product June 10, 2021 Perfect size and features for my new workstation setup with the Intel i7 Mac Mini I just purchased. The fan is a bit noisy, but expected for the the size of the unit. Overall I am very happy with the Thunderbay 4.

I would recommend this item to a friend! This review is from OWC ThunderBay 4 Four-Bay External Drive Enclosure with Dual Thunderbolt 3 Ports.

Response from OWC, Support June 14, 2021 Rik, Thank you for your product review. We are very pleased to hear that you are happy with the ThunderBay 4!
Verified Buyer
Reviewer: PuzzledChipmunk-33821
Rating: 5/5 Excellent product June 7, 2021 Works perfect with my new Mac Mini M1.

I would recommend this item to a friend! This review is from OWC ThunderBay 4 RAID 5 4-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports, SoftRaid 6 included.

Verified Buyer
Reviewer: MutlyUSA
Rating: 5/5 Works Well For Me!!! May 26, 2021 It is fast & easy to setup drive bays accommodate multi- drive sizes very nice, I pull drives as I need & add for use by mounting all is good I will consider more for the rest of our office system!!!

I would recommend this item to a friend! This review is from OWC ThunderBay 4 Four-Bay External Drive Enclosure with Dual Thunderbolt 3 Ports.

Verified Buyer
Reviewer: LauderdaleDave
Rating: 5/5 Worked perfectly! May 18, 2021 So pleased, I’m replacing our 8 bay QNAP enclosure with an 8 Bay ThunderBay.

I would recommend this item to a friend! This review is from OWC ThunderBay 4 RAID 5 4-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports, SoftRaid 6 included.

Verified Buyer
Reviewer: HealthyGazelle-65718
Rating: 5/5 Economical solution for data redundancy April 29, 2021 took a little work to get around Apples security, but support has a solution.

I would recommend this item to a friend! This review is from OWC ThunderBay 4 Four-Bay External Drive Enclosure with Dual Thunderbolt 3 Ports.

Verified Buyer
Reviewer: TastyOx-44201
Rating: 5/5 Arrived on time! April 29, 2021 Everything works and arrived on time. This was amazing!

I would recommend this item to a friend! This review is from 72TB OWC ThunderBay 4 RAID 5 Four-Drive Enterprise HDD Storage Solution with Dual Thunderbolt 3 Ports.

Verified Buyer
Reviewer: FierceBobcat-89792
Rating: 4/5 Great enclosure April 27, 2021 Would have been 5 stars if the fan was quieter.

I would recommend this item to a friend! This review is from OWC ThunderBay 4 Four-Bay External Drive Enclosure with Dual Thunderbolt 3 Ports.

Verified Buyer
Reviewer: CleverQuail-6705
Rating: 5/5 Rock solid performance April 27, 2021 Impressed with the hardware design. Easy to set up with SoftRAID XT.

I would recommend this item to a friend! This review is from OWC ThunderBay 4 RAID 5 4-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports, SoftRaid 6 included.

Reviewer: DesertNomad Location: Nevada Age: 45-54 Experience Level: IT Professional Owned Product: less than a month
Rating: 4/5 Great system, bright lights October 1, 2020 This is my fourth Thunderbay RAID system. Previous ones were Thunderbay 4 units, but based on Thunderbolt 2 connectors. This one works just as well and is very sturdy and well built.

One issue I have is that the green LED activity lights are extremely bright. They are in the chassis itself and the light passes through a small plastic "lens" on the inside top of front door/grill and out through small holes in the grill. On the larger Thunderbay 8 units, this lens is black and nearly opaque which filters and dims the intense LEDs to a comfortable (almost too dim) level. On this Thunderbay 4 unit, the lens is clear which means at night I get a small laser show in my office as the drive reads and writes.

There really needs to be a darker filter in the grill to dim this light.

This review is from 32TB OWC ThunderBay 4 RAID 5 Four-Drive Enterprise HDD Storage Solution with Dual Thunderbolt 3 Ports.

Verified Buyer
Reviewer: abaggy Location: Henderson, NV Age: 55-65 Experience Level: Power User Owned Product: 3-4 months
Rating: 5/5 Solid RAID unit September 11, 2020 I bought this unit to replace an old RAID unit that had a proprietary formatting and wasn't compatible with any of the standard formats. This unit took my existing HD's without a hiccup, formatted the units and now I have a lightning quick RAID 5 unit. I haven't had any issues streaming video from it or transferring files between other drives. The Thunderbolt 3 interface is FAST!

I would recommend this item to a friend! This review is from OWC ThunderBay 4 RAID 5 4-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports, SoftRaid 6 included.

Verified Buyer
Reviewer: Pavonia Location: Washington
Rating: 5/5 Great drives May 6, 2019 Outgrew my Western Digital hard drives and needed a big, safe, fast drive. Found OWC ThunderBay drives and not looking back. This is my second one. Equipment is super solid and support staff is fantastic. No need to look anywhere else.

I would recommend this item to a friend! This review is from 16TB OWC ThunderBay 4 RAID 5 4-Drive HDD External Storage Solution with Dual Thunderbolt 3 Ports.

Verified Buyer
Reviewer: daver Location: Plano, Texas Age: Over 65 Experience Level: Power User Owned Product: less than a month
Rating: 4/5 Excellent choice July 25, 2018 This is my second ThunderBay 4 so that must say something. The other (with ThunderBolt 2) has been in constant use 24/7 for several years without out a single error. Which is why I bought another one with Thunderbolt 3. With four 4TB 7200 RPM HGST disks it is blazingly fast and provides enough storage for my image and video editing.

I had one slight problem with a RAID 0 volume mixed in with two RAID 5 volumes. I like to create a RAID 0 scratch volume to provide scratch and cache space for all of my photo/video tools. For some reason this particular system combination (hardware, software, disks)does not like this combination. My other ThunderBay 4 is fine with this config. So I whacked the RAID 0 volume and made it RAID 5 and all is well. Support is supposedly looking into this.

I would recommend this item to a friend! This review is from OWC ThunderBay 4 RAID 5 4-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports, SoftRaid 6 included.

Verified Buyer
Reviewer: Scoob Location: Los Angeles Age: 35-44 Experience Level: Home User Owned Product: less than a month
Rating: 5/5 Works well with my Mac server May 29, 2018 Purchased it to use my Mac mini server as a replacement for an older NAS. It worked right out of the box. Setting up the partitions was easy. So far, it's been great.

I would recommend this item to a friend! This review is from (*) 16.0TB OWC ThunderBay 4, four-drive HDD with dual Thunderbolt 2 ports, RAID 5 Solution.

Verified Buyer
Reviewer: Jigbobby Location: Western Washington Age: 55-65 Experience Level: Hobbiest Owned Product: less than a month
Rating: 4/5 A screamer, but somewhat noisy April 23, 2018 This unit is fantastically fast. Make no mistake about that. It transfers files faster than you can imagine, compared to other interfaces. It's reliable, and the software included does a great job of keeping everything in order. But if you are adding this to a new Mac, be aware that the new High Sierra OS on an iMac Pro prevents the included software from installing properly. You have to visit the Software manufacturer's website ( SoftRAID) for instructions on how to properly install it. If you don't do this problems will arise and you will likely find your data damaged and your disks having to be rebuilt which takes forever. done properly, though, this machine is stable, extremely fast, and generally goes un-noticed while doing its thing. Except for the noise. With a normal PC with spinning hard drives, this box would likely not be heard. But with an iMac or iMac Pro, it sounds loud and somewhat annoying. I almost returned it because of that, but its just too good at it's job to replace.

I would recommend this item to a friend! This review is from 12TB OWC ThunderBay 4 RAID 5 4-Drive HDD External Storage Solution with Dual Thunderbolt 3 Ports.

Verified Buyer
Reviewer: Seanocaster Location: Dubai, UAE Age: 25-34 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Thunderbay 4 with RAID 5 March 7, 2018 This is the second one of these that i've purchased - the first being about 3 years ago. I have been very happy with the performance and reliability so this was a no brainer for me when i needed another one.

I now have 2 on my desk, one for personal use and one for photo/video professional use.

This review is from OWC ThunderBay 4 RAID 5 4-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports, SoftRaid 6 included.

Verified Buyer
Reviewer: mcreative
Rating: 4/5 Thunderbolt 3 Raid enclosure that meets expectations February 22, 2018 Just received the product and placed four 7200rpm HDD that I had available into it. After installation, the SoftRAID XT software (that I had to find and download - not as easy as the included pamphlet led me to believe) told me that one of my HDDs would fail sooner than later and to replace it. I replaced the problematic drive and the machine has been running flawless ever since (about a month now). I would give the hardware 5 stars but the SoftRAID XT software was 3 stars due to the challenge finding the right version and installing the serial number from the bottom of the hardware.

I would recommend this item to a friend! This review is from OWC ThunderBay 4 RAID 5 4-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports, SoftRaid 6 included.

Response from OWC, Call Center February 23, 2018 Hello! I'm very sorry about any issues you experienced finding and downloading SoftRAID. The current version of SoftRAID will always be available for download here: https://www.softraid.com/pages/support/download_latest_version.html and SoftRAIDXT here: https://www.softraid.com/pages/support/softraidxt.html
OWC ThunderBay 4 0TB 4-Drive HDD Storage Enclosure with Dual Thunderbolt 3 Ports Mfr P/N: TB3IVKIT000 OWC SKU: OWCTB3IVKIT000U Add your own drives! Thunderbolt 3 cable included. 90 Day OWC Limited Warranty
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