OWC ThunderBay 4 mini

We're sorry, but this item is no longer for sale. However, there may be more External Drives & Enclosures items available.

We recommend OWC ThunderBay 4 Four-Bay Thunderbolt (40Gb/s) External Storage Enclosure for 2.5-inch & 3.5-inch SATA Drives (Mfr P/N: TB3IVKIT000) from OWC for $399.99 as a suitable alternative.

OWC ThunderBay 4 mini

Four-Bay Thunderbolt (40Gb/s) External Storage Enclosure for 2.5-inch SATA Drives


Mfr P/N: TB3QMJB000 OWC SKU: OWCTB3QMJB000

The Perfect Combination of Speed, Size, and Convenience for Permanent Access to Your Data

  • Four hot-swappable 2.5-inch drive bays: mix or match 2.5-inch HDDs and SSDs
  • Up to 765MB/s peak performance and 1556MB/s SSD peak performance (RAID 0)
  • Daisy-chain up to five additional Thunderbolt devices
  • Thunderbolt certified for Mac and Windows
  • 1 Year OWC Limited Warranty
availability

Big RAID System Performance in a Compact Design

The ThunderBay 4 mini is a compact data storage enclosure that you can populate with new or existing 2.5-inch HDDs or SSDs. It's big on performance and flexibility, yet ThunderBay 4 mini is about the length of a pencil and can weigh as little as 3.1 pounds with drives.
The rugged heat-dissipating aluminum enclosure features two Thunderbolt 3 (Thunderbolt 2/Thunderbolt backward compatible1) ports for up to 1556MB/s speeds, so you have more than enough bandwidth to handle personal and business backups – all the way up to today's highest resolution audio, photo, and video formats. If you are seeking big RAID performance that's small enough to fit on a desk, in a rack, or on a DIT cart, your wish is now a reality.
Speed, size, and convenience – the OWC ThunderBay 4 mini provides everything a demanding workflow requires.

A New World of Drive Use Flexibility

With four drive bays, you can mix or match different brand and capacity 2.5-inch SSDs and HDDs. Use mixed drives independently or combine drives as a RAID (requires RAID setup and management software, such as OWC SoftRAID). You can populate this empty enclosure with your own drives, or choose a pre-configured capacity solution to achieve your desired balance of storage, performance, and data redundancy.
Expand production capabilities in industry-leading creative platforms like Final Cut X, Avid Pro Tools, Apple Pro Logic, and Adobe Lightroom, edit large images, manage massive photo and audio libraries, store drone videos, use it as a transport drive…whatever the day or project demands, the ThunderBay 4 mini is the perfect workflow solution.

Install or Swap in Minutes

Want to access a drive or expand your storage capacity? Simply open the front panel security lock to access the four individual bays. Drives mount to a tray that slides back in and automatically plugs into a drive connector so you can get back to work in minutes.

Store More, Go Faster

With the ability to daisy-chain you can add up to five additional ThunderBay 4 mini solutions to create massive storage capacities. Merge them with RAID management software for even more flexibility, capacity, and capability. Or if speed is what you're after, connect multiple ThunderBay 4 mini solutions to multiple Thunderbolt 3 ports on your Mac or PC to achieve exponential speed capabilities.

Professional Grade = Ready to Work

We understand having confidence in gear reliability is paramount to creative professionals. That's why every ThunderBay 4 mini enclosure undergoes a multi-step performance certification prior to shipping. This ensures your ThunderBay 4 mini enclosure arrives ready for demanding use.

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.

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.

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 4 mini's housing to secure your Thunderbolt 3 and USB-C connections and prevent work session interruption and possible data loss.

Support You Can Trust

Like all OWC products, the ThunderBay 4 mini enclosure is fully backed by OWC's award-winning support team and OWC Limited Warranty.
  1. Thunderbolt 2/Thunderbolt compatibility requires a certified Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) adapter and a Thunderbolt 2 cable (not included). This configuration provides data transfer at up to 20Gb/s but does not support notebook charging.
  2. Advanced RAID features require RAID management software (such as OWC SoftRAID, available separately).

IncludesIncludes

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Need an additional power supply? Secondary/replacement power supplies are also available.

    Drive Bays

    • 4 bays supporting: 2.5-inch SATA drives

    Boot Support

    • Independent volumes bootable in macOS. Boot Camp is not supported.

    Storage Interface

    • SATA

    RAID Capable

    • Yes

    RAID Levels Supported

    • JBOD

    RAID Features

    • Software RAID Capable

    Device Ports

    • (1) Host Port - Thunderbolt 3 (USB-C) up to 40Gb/s (5000MB/s)
    • (1) Thunderbolt 3 (USB-C) Port

    Power Delivery

    • Thunderbolt 3 host port provides up to 15W of power to the host computer.1
    • Thunderbolt 3 device port (for external drives and other devices) provides 15W of power.

    Data Transfer Rate (Maximum)

    • Thunderbolt 3 : Up to 40Gb/s (or 5000MB/s)

    Chipset / Controller

    • Thunderbolt: Intel JHL6540
    • SATA Controller: ASMedia ASM-1062

    Host Interface Requirements

    • Thunderbolt (USB-C) port (backward compatible with Thunderbolt 2/Thunderbolt1)

    Mac OS Compatibility

    • macOS 10.13 High Sierra
    • macOS 10.14 Mojave
    • macOS 10.15 Catalina
    • macOS 11.x Big Sur
    • macOS 12.x Monterey
    • macOS 13.x Ventura
    • macOS 14.x Sonoma
    • macOS 15.x Sequoia

    PC OS Compatibility

    • Windows 10 64-bit Edition
    • Windows Server 2022
    • Windows 11

    Driver Required

    • No

    Other Requirements

    • SoftRAID works with macOS 10.14 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.

    External Power Adapter

    • Yes

    Power Supply

    AC Input

    • 100-240V, 50-60Hz, 2.0A

    DC Output

    • +12V, 6A

    Wattage

    • 72W

    Cooling

    • (1) 60mm cooling fan

    Security Slot

    • Yes

    Power/Activity LED

    • Yes

    Housing Color

    • Black

    Housing Material

    • Aluminum

    Dimensions

    • Height: 11.7 cm (4.6 in)
    • Length: 19.1 cm (7.5 in)
    • Width: 9.6 cm (3.8 in)

    Weight

    • 1.1 kg (2.51 lbs)

    Certifications

    • CE
    • FCC
    • VCCI
    • RCM
    • BSMI

    Reach Certification

    • Yes

    Country of Origin

    • Taiwan

    TAA Compliance

    • Yes

    Ambient Temperature

    • Operating: 41°F to 95°F (5°C to 35°C)
    • Non-Operating: -4°F to 140°F (-20°C to 60°C)

    Altitude

    • Operating: -304.8 m to 3,048.0 m (-1,000 ft to 10,000 ft)
    • Non-Operating: -304.8 m to 12,192.0 m (-1,000 ft to 40,000 ft)

    Humidity

    • Operating: 8% to 90% non-condensing
    • Non-Operating: 5% to 95% non-condensing

    Noise

    • Varies depending on drive mechanism installed
    1. Thunderbolt 2/Thunderbolt compatibility requires a certified Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) adapter and a Thunderbolt 2 cable (not included). This configuration provides data transfer at up to 20Gb/s but does not support notebook charging.

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    Late 2019
    Model ID: MacPro7,1
    2.5GHz 28-Core Xeon
    Detailed SpecsInstall Videos
    Mac Pro Rack (Late 2019)
    Mac Pro Rack (Late 2019)
    Late 2019
    Model ID: MacPro7,1
    2.5GHz 28-Core Xeon
    Detailed SpecsInstall Videos
    Mac Pro (Late 2013)
    Mac Pro (Late 2013)
    Late 2013
    Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.
    Model ID: MacPro6,1
    3.7GHz 4-Core Xeon & 3.5GHz & 3.7GHz 6-Core Xeon & 3.0GHz 8-Core Xeon & 3.0GHz 10-Core Xeon & 2.7GHz 12-Core Xeon
    Detailed SpecsInstall VideosLearn More
    Mac Studio (Early 2025)
    Mac Studio (Early 2025)
    Early 2025
    Model ID: Mac16,9 & Mac15,14
    Apple M4 Max & Apple M3 Ultra
    Mac Studio (Mid 2023)
    Mac Studio (Mid 2023)
    Mid 2023
    Model ID: Mac14,14 & Mac14,13
    Apple M2 Ultra & Apple M2 Max
    Mac Studio (Early 2022)
    Mac Studio (Early 2022)
    Early 2022
    Model ID: Mac13,2 & Mac13,1
    Apple M1 Ultra & Apple M1 Max
    Mac mini (Late 2024)
    Mac mini (Late 2024)
    Late 2024
    Model ID: Mac16,11 & Mac16,10
    Apple M4 Pro & Apple M4
    Mac mini (Early 2023)
    Mac mini (Early 2023)
    Early 2023
    Model ID: Mac14,3 & Mac14,12
    Apple M2 & Apple M2 Pro
    Mac mini (Late 2020)
    Mac mini (Late 2020)
    Late 2020
    Model ID: Macmini9,1
    Apple M1
    Mac mini (Late 2018)
    Mac mini (Late 2018)
    Late 2018
    Model ID: Macmini8,1
    3.6GHz Core i3 & 3.0GHz Core i5 & 3.2GHz Core i7
    Detailed SpecsInstall Videos
    Mac mini (Late 2014)
    Mac mini (Late 2014)
    Late 2014
    Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.
    Model ID: Macmini7,1
    1.4GHz & 2.6GHz & 2.8GHz Core i5 & 3.0GHz Core i7
    Detailed SpecsInstall VideosLearn More

    PC Compatible

    PC Compatible
    PC Compatible

    PC must have a compatible Thunderbolt port
    4.43 out of 5

    41 out of 44 (93%) reviewers would recommend this product

    Write a Review
    64%
    23%
    9%
    2%
    2%

    Works well with a refurbished Mac Pro ("trashcan") I bought from OWC

    Works well with a refurbished Mac Pro ("trashcan") I bought from OWC. I bought one of these quite a while before they ran out of them. Eventually needed to expand my photo/video storage (internal Mac Pro SSD seems limited to 2TB). Populated this unit with four reliable 2.5" SSDs (wait for a sale?). A cost effective solution. Using MacOS native software RAID as a mirror/stripe set (i.e. no 3rd party software involved). Just use the shortest Thunderbolt 2 cable to connect [and make sure it's alone on it's own Thunderbolt 2 bus for best performance -- Mac Pro ("trashcan") has 3]. No issues and it's fast. Continued lifespan for my Mac Pro ("trashcan"), which, itself was a great deal (and was fully configured and tested by OWC).

    I would recommend this product to a friend!

    Verified Purchase
    Verified PurchaseVerified Purchase.
    autoxtl2, 
    • Reviewer:autoxtl2
    Response from OWC, Support

    Thank you so much for your fantastic review! We're thrilled to hear that your refurbished Mac Pro is working seamlessly with your new storage solution! It’s great to know you found a cost-effective way to expand your storage using reliable SSDs. The setup sounds perfect, and using macOS native software RAID is a smart choice! We appreciate your tip about using the shortest Thunderbolt 2 cable too. Happy editing and storing!


    Perfect

    Excellent product for my needs.

    I would recommend this product to a friend!

    Verified Purchase
    Verified PurchaseVerified Purchase.
    fprstudio, 
    • Reviewer:fprstudio
    Response from OWC, Support

    Thank you for the amazing 5-star review! We're thrilled to hear that our product is meeting your needs perfectly. Enjoy your purchase!


    Excellent Product

    The four OWC 4TB SSD drives run very well with out any issue as separate units, no raid on my M2 Pro Mac Mini. Could it be even better, yes! The fan has some very low level noise, there is no on/off switch and the logo light is on all the time as others have said. To that extent, I keep my unit under the table so the noise and logo light is not a problem. Note: I also have their MiniStack STX and their Gemini storage units which both have a permanent logo light and no on/off switch. The units are on the desk and the logo light is completely unnecessary and sometimes annoying. Wish OWC would stop using such a bright logo light and perhaps a simple tiny blue LED dot (next to the green/amber drive indicator lights) to that can also be dimmed and turned off via settings. Its kind of useless advertising, three bright blue logos reminding me that I bought it from them.

    I would recommend this product to a friend!

    Verified Purchase
    Verified PurchaseVerified Purchase.
    Avera, 
    Jan, 3 2024 
    • Reviewer:Avera
    Response from OWC, Support

    Thank you for the amazing review! We're thrilled to hear that the four OWC 4TB SSD drives are running smoothly on your M2 Pro Mac Mini. Your feedback is important to us, and we'll definitely take it into consideration for future improvements. We're grateful for your continued support and trust in our products. Please feel free to contact us if you have any further questions, comments, or concerns.  https://eshop.macsales.com/Service/


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