⚡ Just Arrived: OWC Envoy Ultra Thunderbolt 5 SSD Now in 8TB – Extreme Speed, Massive Storage!

Flexx International Ltd
  • 0
No result found for your search.
  • Home
  • All Products
  • OWC ThunderBay 4 Four-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports for 2.5 and 3.5-inch SATA Drives OWC ThunderBay 4 Four-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports for 2.5 and 3.5-inch SATA Drives
Categories
  • Mac Upgrades
    • RAM Upgrades
    • Internal SSD Upgrades
    • External SSD & Storage
    • Docks & Hubs
    • Thunderbolt/USB Enclosures
    • Expansion Cards
    • Adapters
    • MacBook Batteries
    • Mac Service kits and Tools
    • M Series Macs
    • Mac Expansions
    • Mac, iPhone & iPad Accessories
  • Memory
    • Laptop/Notebook RAM
    • Desktop RAM
    • Server RAM
    • Gaming RAM
  • Storage
    • Internal Storage
    • External Storage
    • External Storage By Connection
    • Encrypted Storage
    • Removable Storage
    • Media & Card Readers
  • Docks/Hubs
    • Thunderbolt 5 Docks/Hubs
    • Thunderbolt 4 Docks/Hubs
    • Thunderbolt 3 Docks
    • USB4 Docks and Hubs
    • USB-C Docks/Hubs
    • Docks with Storage
  • Enclosures
    • Drive Enclosures
    • Expansion Card Enclosures
    • Graphic Card Enclosures
    • NAS Enclosures
    • Thunderbolt 5 Enclosures
    • Thunderbolt 4 Enclosures
    • Thunderbolt 3 Enclosures
    • USB4 Enclosures
    • USB-C Enclosures
    • USB Enclosures
    • Thunderbolt PCIe Mac Expansion Systems
    • 1U Rackmount Enclosures
    • 2U Rackmount Enclosures
    • 3U Rackmount Enclosures
  • PCIe Expansion Cards
    • SSD Expansion Cards
    • USB Port Expansion Cards
    • Network Expansion Cards
    • Graphic Cards
    • Video Capture Cards
  • Adapters
    • Drive Adapters
    • Display Adapters
    • Network Adapters
    • Converters/Brackets
  • Laptop Batteries
    • MacBook Pro Battery
    • MacBook Air Battery
    • MacBook Battery
  • Tools & Service Kits
    • Anti Static Products
    • iMac Fan Control Kits for SSD/HDD Upgrades
    • iMac Installation Service Kits
    • Mac Mini Installation Kits
    • Tools
  • Peripherals
    • Cables
    • Chargers/PSU
    • Keyboards
    • Mice
    • iPhone/iPad/Mac Accessories
  • Audio & Visual
    • Audio & Video
    • Monitors/TVs
  • Bundles
  • Sale
  • More
    • Components
    • Open Box Items
    • Dashcams/Bodycams
    • Game Console Upgrades
    • Virtual Reality headset - VR
  • electro-track-order-icon
  • Free Delivery
  • electro-thumb
  • 99% Customers
    Feedback
  • electro-return-icon
  • 30 Days
    Return Policy
  • electro-payment
  • Payment
    Secure System
  • electro-brands-icon
  • Only Best
    Brands
% £-529.49
OWC ThunderBay 4 Four-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports for 2.5 and 3.5-inch SATA Drives
OWC ThunderBay 4 Four-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports for 2.5 and 3.5-inch SATA Drives
OWC ThunderBay 4 Four-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports for 2.5 and 3.5-inch SATA Drives
OWC ThunderBay 4 Four-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports for 2.5 and 3.5-inch SATA Drives
OWC ThunderBay 4 Four-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports for 2.5 and 3.5-inch SATA Drives
OWC ThunderBay 4 Four-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports for 2.5 and 3.5-inch SATA Drives
OWC ThunderBay 4 Four-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports for 2.5 and 3.5-inch SATA Drives
OWC ThunderBay 4 Four-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports for 2.5 and 3.5-inch SATA Drives
OWC ThunderBay 4 Four-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports for 2.5 and 3.5-inch SATA Drives
OWC ThunderBay 4 Four-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports for 2.5 and 3.5-inch SATA Drives
OWC ThunderBay 4 Four-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports for 2.5 and 3.5-inch SATA Drives
OWC ThunderBay 4 Four-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports for 2.5 and 3.5-inch SATA Drives
OWC

OWC ThunderBay 4 Four-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports for 2.5 and 3.5-inch SATA Drives

2 reviews
Product SKU: OWCTB3SRKIT0GB
Available:
Only 0 item in stock
0 item in stock
In stock
Pre-order
Out of stock
£529.49
RAID Software
 
This item is a deferred, subscription, or recurring purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted.
Want it delivered by
  • Description
  • Specifications
  • Compatibility
  • Product videos
  • Reviews

Powered by SoftRAID (SoftRAID software option only). Add your own drives! Thunderbolt 3 cable included.

Highlights

  • Two Thunderbolt 3 ports
  • Up to 1550MB/s sustained performance1
  • Includes SoftRAID: robust software for creating, monitoring, and managing advanced RAID sets
  • Four hot-swappable universal drive bays: mix or match 2.5-inch (no adapter needed) and 3.5-inch HDDs and SSDs
  • Ultra quiet, heat-dissipating aluminium chassis

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.

Includes SoftRAID XT: Easy and Complete Drive Management
SoftRAID XT 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.

Compatible: Works with macOS 14.x Sonoma, M series Macs and Windows 11

Advanced: Create RAID 0/1/4/5/1+0 (10) with Macs, RAID 0/1 with Windows machines

Protected: SoftRAID Monitor constantly watches your disks and alerts you if problems are detected

Validated: Volume validation ensures sectors can be read and parity is correct

Certified: Checks disks before use to ensure they are safe for data storage

Vigilant: Error prediction helps protect against unexpected failure

Universal: Move SoftRAID arrays seamlessly between Macs and PCs with built-in OWC MacDrive technology

SoftRAID provides a level of performance that you simply can’t get with hardware RAID. Learn more about the power of SoftRAID XT.

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.

SoftRAID XT works with macOS 10.12 or later and Windows 10. M1 Macs require macOS 11.3 or later. SoftRAID is licensed per computer.

Includes

  • (1) OWC ThunderBay 4 External Storage Enclosure
  • (1) 0.7M (28") Thunderbolt Cable
  • (1) UK Power Cable (EU cable for EU customers)
  • (2) Security Keys for Front Panel Lock
  • (1) Quick Start Guide for OWC ThunderBay 4 with Thunderbolt 3
  • (1) Assembly Manual & User Guide for OWC ThunderBay 4 with Thunderbolt 3
  • 1 Year OWC Limited Warranty
  • Product code: OWCTB3IVKIT000 (No SoftRaid) and OWCTB3SRKIT0GB (With SoftRaid) - options
  • Number of Bays: 4
  • Drive Bays: 4 bays supporting: 2.5-inch SATA drives, 3.5-inch SATA drives
  • Plug and Play: Yes
  • Hot Swap Support: Yes
  • Boot Support: Boot Camp is not supported.
  • RAID Capable: Yes
  • RAID Levels Supported: JBOD, RAID 0, RAID 1, RAID 4, RAID 5, RAID 10
  • RAID Features: Software RAID
  • Power Delivery: Thunderbolt 3 host port provides up to 15W of power to the host computer. Thunderbolt 3 device port (for external drives and other devices) provides 15W of power.
  • Device Ports:
    • (1) Host Port - Thunderbolt 3 (USB-C) up to 40 Gb/s (5000 MB/s)
    • (1) Thunderbolt 3 (USB-C) Port
  • Data Transfer Rate (Maximum): Thunderbolt 3: Up to 40 Gb/s (or 5000 MB/s)
  • Chipset / Controller:
    • SATA Controller: (2) ASM1062
    • Thunderbolt 3: (1) Intel DSL6540
  • Host Interface Requirements: Thunderbolt (USB-C) port (backward compatible with Thunderbolt 2/Thunderbolt1)
  • External Power Adapter: No
  • Power Supply: Internal UL-listed universal auto-switching power supply
  • Need an additional power supply? Secondary/replacement power supplies are also available.
  • AC Input: 100-230V
  • Replacement Adapter Part Number: OWCMNEPWR3PUS (sold separately)
  • Cooling: (1) 92mm 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)
  • Reach Certification: Yes
  • Country of Origin: Taiwan
  • TAA Compliance: Yes
  • 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
  • Thunderbolt 2/Thunderbolt compatibility: requires a certified Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) adapter and a Thunderbolt 2 cable (available separately). This configuration provides data transfer at up to 20Gb/s but does not support notebook charging.
  • For units purchased prior to 12/24/18, please see the OWC ThunderBay 4 Support Page for instructions on how to update your ThunderBay's firmware.

Operating System Compatibility

Mac OS:

  • 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
  • macOS 26.x Tahoe

Windows OS:

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

Compatible Mac Models

iMac (2017 – 2024, including M-series models):

  • 2017 – iMac18,1 / iMac18,2 / iMac18,3
  • 2019 – iMac19,1 / iMac19,2
  • 2020 – iMac20,1 / iMac20,2
  • 2021 – iMac21,1 / iMac21,2 (M1)
  • 2023 – Mac15,4 / Mac15,5 (M3)
  • 2024 – M-series models supported

iMac Pro:

  • 2017 – iMacPro1,1

MacBook Air (2018 – 2025, including M-series models):

  • 2018 – MacBookAir8,1
  • 2019 – MacBookAir8,2
  • 2020 – MacBookAir9,1
  • 2020 – MacBookAir10,1 (M1)
  • 2022 – Mac14,2 (M2)
  • 2023 – Mac14,15 (M2)
  • 2024 – Mac15,12 / Mac15,13 (M3)
  • 2025 – M-series models supported (up to M4)

MacBook Pro (2016 – 2025, including M1 / M2 / M3 / M4 / M5 models):

  • 2016 – MacBookPro13,1 / 13,2
  • 2017 – MacBookPro13,3 / 14,1 / 14,2 / 14,3
  • 2018 – MacBookPro15,1 / 15,2 / 15,3
  • 2019 – MacBookPro15,1 / 15,2 / 15,3 / 15,4 / 16,1 / 16,4
  • 2020 – MacBookPro16,2 / 16,3 / 17,1 (M1)
  • 2021 – MacBookPro18,1 / 18,2 / 18,3 / 18,4 (M1 Pro / Max)
  • 2022 – Mac14,7 (M2)
  • 2023 – Mac14,10 / 14,5 / 14,6 / 14,9 (M2 Pro / Max)
  • 2023 – Mac15,3 / 15,6 / 15,7 / 15,8 / 15,9 / 15,10 / 15,11 (M3 Pro / Max)
  • 2024–2025 – M-series models supported (up to M5)

Mac Pro:

  • 2019 – MacPro7,1
  • 2023 – Mac14,8 (M2 Ultra)

Mac Pro Rack:

  • 2019 – MacPro7,1
  • 2023 – Mac14,8 (M2 Ultra)

Mac Studio (2022 – 2025):

  • 2022 – Mac13,1 / Mac13,2 (M1 Max / Ultra)
  • 2023 – Mac14,13 / Mac14,14 (M2 Max / Ultra)
  • 2025 – M-series models supported

Mac mini (2018 – 2024):

  • 2018 – Macmini8,1
  • 2020 – Macmini9,1 (M1)
  • 2023 – Mac14,3 / Mac14,12 (M2 / M2 Pro)
  • 2024 – M-series models supported

PC Compatibility:

Compatible with Windows PCs equipped with a Thunderbolt port (Thunderbolt 3, 4, or 5 depending on system support).

Customer Reviews

Based on 2 reviews
Write a review
100%
(2)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
M
Mark North

Changed my order and was contacted promptly and spoken to about best options for another Raid option.

S
Steve Plume
OWC ThunderBay 4 Four-Bay External Storage Enclosure with Dual Thunderbolt 3 Ports for 2.5 and 3....

Bought this raid device to replace my Drobo 5D3. Obviously quicker with the thunderbolt 3 ports. As quiet as the old one. Only time will tell if it’s as robust as the Drobo but I’m pleased. Setup with softraid XT is very easy as is prepping the new 6Tb hard drives

User picture
Flexx International Ltd
Got questions? Call us
0800 195 4072
Follow Us
Policies
  • Return and refund policy
  • Shipping Policy
  • Cancellation policy
  • Terms of Service
  • Privacy Policy
Company Info
  • Knowledge Base
  • Contact Us
  • About us
  • FAQ's
  • Blog
Shop
  • Mac Upgrades
  • Memory
  • Storage
  • Docks/Hubs
  • Enclosures
  • PCIe Expansion Cards
  • Adapters
  • Laptop Batteries
  • Tools & Service Kits
  • Peripherals
  • Audio & Visual
  • Bundles
  • Sale
  • More
© 2026 Flexx International Ltd. All Rights Reserved | Made by Banbridge Website Studio
  • American Express
  • Apple Pay
  • Bancontact
  • Diners Club
  • Discover
  • Google Pay
  • iDEAL Wero
  • Maestro
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa
  • Flexx International Ltd
Product successfully added to your Shopping Cart
Continue shopping View cart