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  • OWC ThunderBay 4-Bay Storage Enclosure with Dual Thunderbolt 3 Ports
  • OWC ThunderBay 4-Bay Storage Enclosure with Dual Thunderbolt 3 Ports
  • OWC ThunderBay 4-Bay Storage Enclosure with Dual Thunderbolt 3 Ports
  • OWC ThunderBay 4-Bay Storage Enclosure with Dual Thunderbolt 3 Ports
  • OWC ThunderBay 4-Bay Storage Enclosure with Dual Thunderbolt 3 Ports
SKU: P19630
Availability: Sold Out

OWC ThunderBay 4-Bay Storage Enclosure with Dual Thunderbolt 3 Ports

48 payments of per month. Learn more
  • Vendor: OWC
  • Product Type: Storage
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All New Design for Power and Performance

ThunderBay 4, OWC's flagship 4-bay RAID ready powerhouse is bigger and faster than ever before. Now with the unbelievable performance of Thunderbolt 3 — up to 1527MB/s sustained performance1 — it'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. Add vast amounts of high-performance storage with ThunderBay 4.

Utilize each of the four internal drives independently, or use the software RAID of your choice to setup a multi-drive array for high performance or data redundancy.

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.

Highly configurable to perfectly match your performance needs. 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 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.

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.


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

Dual Thunderbolt ports let you connect the display of your choice that your computer can support, including 4K displays.

Thunderbolt Cable

ThunderBay 4 comes with a certified OWC Thunderbolt 3 cable, with other lengths from 0.5 meter to 2.0 meters available separately.

  • AC input: 100 - 230V
Software Requirements
  • macOS 10.12 or later
  • Windows 10 or later
Hardware Requirements
  • Mac or PC featuring Thunderbolt 3 interface
  • Mac or PC featuring Thunderbolt or Thunderbolt 2 interface1
Interface (Chipset)
  • (2) Thunderbolt 3 (Intel DSL6540)
  • (1) DisplayPort
Max Transfer Rate
  • Thunderbolt 3: 40 Gb/s (5000 MB/s)
JBOD / RAID Support
  • JBOD: Utilize each of the four drives independently
  • RAID: Use any Software RAID of your choice to setup the ThunderBay 4 for multi-drive performance or data redundancy
  • Includes SoftRAID Lite with support for RAID 0 and 1. Upgrade option for RAID 4, 5, 1+0 capability
Drives Supported
  • (4) 3.5" SATA 6Gb/s drives or
  • (4) 2.5" SATA 6Gb/s drives
    • SATA revision 3.0 (6Gb/s) compliant
    • Compatible with SATA revisions 2.0 (3Gb/s) and 1.0 (1.5Gb/s)
Kensington Lock Slot
  • Yes
  • Yes (Power and disk activity)
Plug and Play
  • Yes
Power Power Supply
  • Environmental (Operating)
    • Temperature (°C) 10° — 35°
    • Temperature (°F) 50° — 95°
  • Environmental (Non-Operating)
    • Temperature (°C) −40° — 65°
    • Temperature (°F) −40° — 149°
  • Height: 177 mm/7.0 in
  • Width: 135 mm/5.3 in
  • Length: 245 mm/9.6 in
  • 3.9 kg (8.6 lbs)

1. Thunderbolt/Thunderbolt 2 compatibility requires a certified Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) adapter and a Thunderbolt 2 cable. Compatibility will be at Thunderbolt/Thunderbolt 2 speeds.

  • OWC ThunderBay 4 high performance hard drive enclosure with Thunderbolt 3
  • Thunderbolt 3 cable
  • External power cable
  • 2 Security Keys
  • ThunderBay 4 Quick Start Guide
  • SoftRAID Lite XT
  • SoftRAID XT Lite Quick Start Guide

Limited 1-Year Warranty