OWC ThunderBay 4

OWC ThunderBay 4 facing left OWC ThunderBay 4 open OWC ThunderBay 4 front view OWC ThunderBay 4 rear view OWC ThunderBay 4 with keys

OWC ThunderBay 4


1527MB/s

Up to 1527MB/s performance

80TB

Four drive capacity up to 80TB

Quick Specs:

  • Thunderbolt (USB-C)
  • 4 Universal Drive Bays
  • RAID
  • Mac & Windows

Speed, Flexibility, Convenience

  • Four hot-swappable universal drive bays: mix or match 2.5-inch and 3.5-inch HDDs and SSDs (no adapter needed)
  • Versatile: two Thunderbolt ports so you can daisy chain up to five additional Thunderbolt devices
  • Easy: offers same functionality and performance with Thunderbolt 3 & 4 machines (Thunderbolt 2/Thunderbolt backward compatible)1
  • Reliable: heat dissipating aluminum chassis keeps things quietly cool
  • 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
  • Worry free: up to 5 Year OWC Limited Warranty2

The “Just Right” RAID for all Storage Needs

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 our 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 at up to 1527MB/s real-world throughput speed.

And ThunderBay 4 is highly configurable to perfectly match your storage needs. You can use each drive independently, or in the SoftRAID XT 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.

OWC ThunderBay 4 in Video Workstation

Cool. Fast. Empowering.

Each ThunderBay 4 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.

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.

Vibration Dampened

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

Multi-Drive

Daisy-chain up to six ThunderBay 4s for massive storage capabilities and increased performance, or connect multiple ThunderBay 4s to multiple Thunderbolt ports to achieve exponential speed capabilities.

OWC ThunderBay 4 daisy chain infographic

The “Supply Chain” That Always Delivers

With two Thunderbolt ports, the ThunderBay 4 lets you daisy-chain up to five additional Thunderbolt devices and displays while keeping Thunderbolt ports on your laptop or desktop free for other uses. You can learn more about how to connect multiple Thunderbolt devices to your computer with this easy-to-follow infographic.

Thunderbolt Logo

Thunderbolt Made Easy

We make it easy to choose the right gear. Our Thunderbolt Certified products offer the same performance and functionality whether they are Thunderbolt 3 or Thunderbolt 4. And if you’re rocking a beloved Thunderbolt 2 machine, we offer an adapter so you can plug into our universe of award-winning solutions. No hassles, no confusion. That’s the OWC Difference.

Apple Mac models with Thunderbolt 2/Thunderbolt ports can be connected using an Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter and a Thunderbolt 2 cable (available separately). This configuration provides data transfer at up to 20Gb/s but does not support notebook charging.

OWC's ThunderBay 4 brings to the market capacities that have yet to be seen in such a compact medium, as well as the performance and data security that only RAID 5 can provide!

- Les Tokar, The SSD Review

OWC SoftRAID
SoftRAID Logo

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 optimize drive performance.

Packed with Features

SoftRAID XT provides an unbeatable combination of speed, protection, and compatibility:

  • Advanced: Create RAID 0/1/4/5/1+0 (10) arrays
  • 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 Mac and PC with built-in OWC MacDrive technology

Beyond Hardware RAID

SoftRAID provides a level of storage performance that you simply can’t get with hardware RAID. Software RAID gives you increased power and control over your RAID drives and disks that hardware RAID can’t deliver and doesn’t lock you into technology that you can’t upgrade or expand.

Dive deeper into the benefits of SoftRAID »
  1. † RAID 4/1+0 (10) is available for Mac only at this time.
  2. ‡ SoftRAID serial numbers work on both Mac and Windows. SoftRAID is licensed per computer. In order to use SoftRAID on multiple computers, you will need a unique, valid license per computer. Additional licenses can be purchased anytime.

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. View Chart »

Storage Chart Icons Image
OWC ClingOn

Work with Ultimate Confidence

Active workspaces expose gear to unexpected bumps and shoves. OWC ClingOn custom cable stabilizers (sold separately) screw into the OWC ThunderBay’s housing to reduce – if not completely eliminate – cable strain on Thunderbolt and USB-C connections so you can work with ultimate confidence even in the highest foot traffic environments.

Professional Grade

Professional Grade = Ready to Work

We understand having confidence in gear reliability is paramount to creative professionals. That’s why every ThunderBay undergoes OWC's multi-hour "burn-in" performance certification prior to shipping. This ensures your ThunderBay arrives operating properly and immediately ready for demanding use.

OWC Thunderbolt (USB-C) Cable

OWC Thunderbolt Cable Included

OWC ThunderBay solutions come with a certified 0.7M OWC Thunderbolt (USB-C) Cable. But if your workflow demands a different length to make the connection, OWC Thunderbolt (USB-C) Cables are the perfect choice.

OWC, Trusted by Pros & Enthusiasts the World Over

OWC, Trusted by Pros & Enthusiasts the World Over

We build our hardware to the highest standards of reliability and performance. Because 100% reliability is always the goal, we rigorously quality test and back our hardware with up to a 5 Year OWC Limited Warranty and award-winning customer support.

Learn More
  1. 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.
  2. 5 Year OWC Limited Warranty for Hard Drive solutions. 1 Year OWC Limited Warranty for Enclosure only.