OWC ThunderBay 4 mini Enclosure Portable 4-Bay External Drive
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OWC ThunderBay 4 mini Enclosure Portable 4-Bay External Drive

Price: $324.00
  • Item #: #owc10
  • Condition: New
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Enclosure Portable 4-Bay External Drive

Dual Thunderbolt 2 | RAID Ready | 4 Drive Bays | Mac


  • Houses Four 2.5" Storage Drives
  • SATA III 6 Gb/s Drive Interface
  • 2 x Thunderbolt 2 Ports
  • Software RAID Compatible
The ThunderBay 4 Mini 4-Bay Enclosure from OWC / Other World Computing features four 2.5" bays that can each house an SSD or hard drive and connects to Mac and Windows systems via Thunderbolt. Once drives are installed, they can be configured using your own RAID software into different RAID options that offer redundancy, speed, or a combination of both. 

The ThunderBay 4 Mini is equipped with two Thunderbolt 2 ports that support a data transfer speed up to 20 Gb/s between your system and the array. It also allows you to daisy-chain up to six devices such as additional ThunderBays, 4K displays, and more. To cool the drives and the array, OWC uses a quiet 60mm fan along with a flow-thru vented design. Included with the array is a 3.3' (1m) ThunderBolt cable to help you get started.


ThunderBay 4 Mini utilizes a heat-dissipating aluminum unibody shell with a "flow-thru" vented design and a 60mm quiet fan to keep everything cool.


4K Display Support
The dual ThunderBolt 2 ports let you connect any display including 4K displays.


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


Flexible Expansion
Daisy-chain up to six ThunderBays on a single Thunderbolt port for expansive storage, RAID, and performance options.


Included Software


Prosoft Engineering Data Backup 3 

Data Backup 3 is a software utility for Mac that allows you to backup, restore and synchronize your valuable data with minimal effort.


Intech SpeedTools Utilities 
SpeedTools Utilities is designed to offer fast, easy, and automated Mac disk repair and maintenance. This utility software has the ability to optimize and tune your Mac system for optimal performance in a matter of minutes.



  • Certified, Double-Shielded 3.3' (1m) Thunderbolt Cable
  • Power Supply and Cable
  • 2 x Keys for Front Panel Lock
  • Limited 1-Year Warranty



Chipset Thunderbolt 2
Interfaces Supported Thunderbolt 2
Interface Transfer Rate 20 Gb/s
Drive Mechanisms Supported Four 2.5" SATA III 6 Gb/s 0.6"/15mm drives
RAID / JBOD Support JBOD: Utilize each of the four drives independently
RAID: Use the included software RAID or one of your choice to setup the ThunderBay 4 for multi-drive performance or data redundancy
Port Configuration 2 x Thunderbolt 2
Port/Interface Bootability It can be used as a Thunderbolt startup drive on Macs running Mac OS X
System Requirements Any Mac with a Thunderbolt port running OS X 10.9 or later.
Any PC running Windows 7 Service Pack 1 or later with a Thunderbolt port. Driver required for proper installation.
Boot Camp is not supported. The Thunderbolt certification process does not include Macs running Windows through Boot Camp.
Power Supply UL Listed U.S./International Auto Switching 100 to 240 V, 50/60 Hz input, 12 Volt 6.0 A output
Dimensions 7.6 x 3.8 x 4.6" / 19.3 x 9.6 x 11.6 cm
Weight 2.4 lb / 1.1 kg


Operating Environment
Temperature Operating: 41 to 107°F / 5 to 42°C
Non-Operating: -40 to 149°F / -40 to 65°C
Relative Humidity Operating: 8 to 90% (Non-condensing)
Non-Operating: 5 to 95% (Non-condensing)
Shock Operating: 65 G at 2 ms
Non-Operating: 175 G at 2 ms
Vibration Operating: 1.0 G (5 to 300 Hz)
Non-Operating: 5.0 G (5 - 500 Hz)


Packaging Info
Package Weight    4.8 lb
Box Dimensions (LxWxH)    10.8 x 10.7 x 4.9"

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