OWC
OWC ThunderBay 4 Mini 4-Bay Enclosure
Best compact storage solution for professional media creators.
The OWC ThunderBay 4 Mini is a compact 4-bay enclosure designed for professionals seeking high-speed, flexible storage. It supports up to four 2.5-inch SATA III drives, configurable in RAID or JBOD for performance or redundancy. Connects via dual Thunderbolt 2 ports, offering data transfer speeds up to 20 Gb/s and the ability to daisy-chain multiple devices. Its aluminum unibody construction with a "flow-thru" vented design and a quiet 60mm fan ensures efficient cooling. Vibration-absorbing feet minimize resonance, providing a stable and reliable storage solution.
$279.75
More ThunderBay Options
Owner Satisfaction
4.6
/ 5
Category Rank
49
/ 561
#49 in Hard Drive Enclosures & Mounts
Price vs Category Average
+180%
Above average
Drive Form Factor
2.5
/ inch
Who it's for
- Data managers seeking customizable performance and redundancy options
- Video editors requiring rapid transfer for high-resolution footage
- Mobile professionals needing high-capacity storage in a compact footprint
Who should skip it
- Budget-conscious buyers looking for affordable multi-bay storage
- Quiet-office workers sensitive to background fan noise
- Users requiring massive storage capacity from 3.5-inch drives
Performance breakdown
Data Throughput
Thunderbolt 2 connectivity provides ample bandwidth for demanding high-resolution media workflows.
Thermal Management
Aluminum unibody design and active cooling keep drives stable under pressure.
Build Quality
Rugged construction ensures long-term reliability for professional field or studio use.
Scalability
Daisy-chaining capabilities allow for massive storage expansion as your library grows.
Acoustic Performance
Quiet fan operation prevents distracting noise in sensitive creative work environments.
Drive Versatility
Supports a wide range of 2.5-inch SSDs and HDDs for flexible configurations.
Data Throughput
Thunderbolt 2 connectivity provides ample bandwidth for demanding professional media workflows.
Thermal Management
Aluminum unibody design effectively dissipates heat during long-term intensive drive operations.
Build Quality
Robust construction ensures long-term durability for mobile and desktop storage setups.
Acoustic Performance
Quiet fan operation keeps noise levels low in professional studio environments.
Configuration Flexibility
Supports diverse RAID setups to balance speed and data redundancy needs.
Daisy-Chain Capability
Seamlessly expands storage capacity by linking multiple units in a single chain.
Key Specs
Drive Form Factor
2.5 inch
External Host Interface
Thunderbolt 2
Internal Drive Interface
SATA III 6 Gb/s
Number of Drive Bays
4
Enclosure Material
Heat-dissipating aluminum unibody shell
RAID Support
Yes (Software RAID Compatible)
Max Data Transfer Speed
20 Gb/s
Power Source
AC Adapter
Features
- Houses four 2.5-inch storage drives
- High-speed Thunderbolt 2 connectivity
- Supports RAID and JBOD configurations
- Efficient cooling with fan and vented design
- Durable heat-dissipating aluminum unibody
- Daisy-chain up to six ThunderBays
- Vibration-dampening design for quiet operation
- Includes 1-meter Thunderbolt cable
What customers say
Professionals highly value the OWC ThunderBay 4 Mini for its exceptional speed and compact design. Users consistently praise the robust, all-aluminum build quality, noting its premium and durable feel suitable for demanding creative workflows. The enclosure delivers excellent data transfer rates, making it ideal for 4K and 8K video editing. Its small footprint is a major advantage, saving valuable desk space without needing an external power supply. While the initial cost is higher, the consensus is that the consistent, reliable performance offers outstanding long-term value. This combination of power and portability earns strong recommendations within the professional community.
Know before you buy
No, the ThunderBay 4 Mini is specifically designed for 2.5-inch SATA III SSDs or hard drives. It will not accommodate standard 3.5-inch desktop drives.
No, this is a software RAID enclosure. You can configure your drives using your operating system's built-in disk management tools or third-party software to achieve your preferred RAID level, such as RAID 0, 1, 5, or 10.
Yes, you can connect this Thunderbolt 2 device to a Thunderbolt 3 or 4 port using a certified Thunderbolt 3-to-2 adapter. It will function at the speeds supported by the Thunderbolt 2 interface.
Yes, the enclosure features a 60mm cooling fan designed for quiet operation. Combined with the heat-dissipating aluminum shell, it is well-suited for noise-sensitive creative environments.
Yes, the dual Thunderbolt 2 ports allow you to daisy-chain up to six devices, including additional ThunderBay enclosures or compatible 4K displays, in a single connection chain.
Yes, the unit is built with integrated vibration dampening features. This helps minimize resonance and noise, especially when using mechanical hard drives that spin at higher speeds.
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Ready to buy?
$280