Choose a different region to see prices in your local currency
You can always change this later from the main navigation.

Unveiling Our Team’s Favourites: Inside Our Wishlist

Looking for inspiration? Unlock the secrets of our team’s must-haves and find out what’s topping their wishlist.
Explore Now
Sign In

Home/All Brands/OWC/OWC 8TB HDD ThunderBay 4 RAID Edition (Thunderbolt 3 Model) with Dual Thunderbolt 3 Ports and SoftRAID XT
Save 18%
OWC 8TB HDD ThunderBay 4 RAID Edition (Thunderbolt 3 Model) with Dual Thunderbolt 3 Ports and SoftRAID XT
OWC 8TB HDD ThunderBay 4 RAID Edition (Thunderbolt 3 Model) with Dual Thunderbolt 3 Ports and SoftRAID XT
OWC 8TB HDD ThunderBay 4 RAID Edition (Thunderbolt 3 Model) with Dual Thunderbolt 3 Ports and SoftRAID XT
OWC 8TB HDD ThunderBay 4 RAID Edition (Thunderbolt 3 Model) with Dual Thunderbolt 3 Ports and SoftRAID XT

OWC 8TB HDD ThunderBay 4 RAID Edition (Thunderbolt 3 Model) with Dual Thunderbolt 3 Ports and SoftRAID XT

Special Order
MegaMac Rating:
Read reviews
Delivery:Calculated at checkout
Returns:14-day return policy
Order within the next -2 hours -32 mins for same day dispatch
Need some help?

Email us, chat now, WhatsApp Us, or call +353 66 400 4010

Product Information


OWC HDD ThunderBay 4 RAID Edition

When two bays clearly aren’t enough storage for your needs and eight bays feels a bit ambitious for now, enter the ThunderBay 4. This “just right” Goldilocks of storage solutions offers the space, speed, and flexibility you can use for both current and future needs.

There’s a reason ThunderBay 4 is OWC's most popular multi-bay RAID storage solution. You can use a variety of 3.5-inch or 2.5-inch drives for everyday digital file storage and backup all the way to running multi-stream compressed 4K video. With two Thunderbolt ports, it gives you the muscle to move all that content.

And ThunderBay 4 is highly configurable to perfectly match your storage needs. You can use each drive independently, or with OWC SoftRAID XT configure your setup with 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.

Cool. Fast. Empowering.

Each populated 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 and ready for demanding use.

Vibration Dampened

ThunderBay 4s' drive isolating design reduces sonic resonance, and is aided by over-sized, rugged, vibration-absorbing, non-skid feet.


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.

Gain a 4K Perspective

With a dedicated DisplayPort 1.2, ThunderBay 4 empowers you to add the fresh, crisp perspective of a 4K display to your workflow. Whether in your home office or on a mobile studio job, seeing your work in full detail is just one connection away. Use it to free up your laptop port so you can dock in and out quick.

SoftRAID: RAID Made Easy

Harness the full capability of your OWC drive array with the included SoftRAID XT, the most powerful, intuitive RAID management software on the market for macOS and Windows. SoftRAID’s RAID creation and management technology has been finely tuned to perfection with over 20 years of development to provide rock solid protection of your data and optimise drive performance.

Workflow and Storage Solutions for Pros

Whether you’re finishing and mastering, creating proxies or working with state-of-the-art VFX and AR, you need dependable tech that keeps pace with your demands. OWC workflow and storage solutions cover every angle, delivering blazing speed, capacity for all five levels of RAID, and bonus features like the freedom to daisy-chain and hot-swap. Use the chart to find the perfect match for your workflow and storage.

Your Digital Life…Protected for FREE

Backing up and protecting your data is critically important. But all too often it’s a task that falls to the bottom of the “to do” list, and you don’t realise it until it is too late. That’s why OWC has partnered with Acronis to give you 1 full year of the #1 personal backup and antivirus software to integrate into your workflow.

  • Flexible: mix and match 3.5-inch or 2.5-inch HDDs and SSDs
  • Versatile: two Thunderbolt ports so you can daisy chain up to five additional Thunderbolt devices
  • Speedy: up to 1147MB/s sustained performance
  • View more: connect up to a 4K display via DisplayPort 1.2
  • Easy: offers same functionality and performance with Thunderbolt 3 & 4 machines
  • Convenient: built-in power supply eliminates hassle of bulky power brick
  • Complete: includes SoftRAID XT: robust software for creating, monitoring, and managing advanced RAID sets


Total Capacity
  • 8.0TB
Standard Mechanism
  • 4 x 2.0TB Western Digital WD Blue 7,200RPM Hard Disk Drive with 256 MB cache
Hot Swap Support
  • Yes
  • SATA Controller: 2 x ASM1062
  • Thunderbolt 3: 1 x Intel DSL6540
Drive Interface
  • SATA 6.0 Gb/s
Rotational Speed
  • 7,200RPM
Data Transfer Rate (Maximum)
  • Thunderbolt 3 : up to 40 Gb/s (or 5000 MB/s)
Plug and Play#
  • Yes
RAID Capable
  • Yes
Default RAID Level
  • RAID 5
RAID Levels Supported
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 4
  • RAID 5
  • RAID 10
RAID Features
  • Software RAID
Benchmark Speed, Read (Max)
  • Up to 1147 MB/s
Benchmark Speed, Write (Max)
  • Up to 1058 MB/s
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
  • macOS 12.x Monterey
  • macOS 13.x Ventura
PC OS Compatibility
  • Windows 10 64-bit Edition
  • Windows 11
Host Port Requirements
  • Thunderbolt (USB-C) port (backward compatible with Thunderbolt 2/Thunderbolt)
Other Requirements
  • SoftRAID XT works with macOS 10.12 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 are currently Mac only at this time
Power Supply
  • Internal UL-listed universal auto-switching power supply
AC Input
  • 100-230V
External Power Adapter
  • No
Number of Bays
  • 4
Device Ports
  • 1 x host port - Thunderbolt 3 (USB-C) up to 40 Gb/s (5000 MB/s)
  • 1 x Thunderbolt 3 (USB-C) port
  • 1 x DisplayPort port
  • 1 x 92mm temperature-controlled cooling fan
  • H: 177 x L: 245 x W: 135 mm

What's in the box

  • 1 x OWC HDD ThunderBay 4 RAID Edition
  • 1 x 0.7 m OWC Thunderbolt Cable
  • 1 x Security Keys for Front Panel Lock
  • 1 x Quick Start Guide
  • 1 x Assembly Manual & User Guide
  • 1 x OWC SoftRAID XT Software Bundle
  • 1 x Quick Start Guide for OWC SoftRAID XT
  • 1 x Manual & User Guide for OWC SoftRAID XT
  • 1 x Acronis Cyber Protect Home Office (1 Year Subscription)

Manufacturer Information

Part Number



  • 3 Year Limited Waranty

Subscribe to our Newsletter

Sign up for our email newletter to be notified about special sales, exclusive products, and more.

We value your privacy and will only send you MegaMac promotions.
We’ll never send you spam or sell your details. You can unsubscribe at any time.