4-Bay Enclosure for 3.5in SATA Drives - Thunderbolt 2 - RAID

Bandwidth hungry? Your solution is here:
Quad-bay high capacity storage with lightning fast performance.

Product ID: S354SMTB2R

  • Create high capacity external data storage with four 3.5” SATA drive bays (HDDs are not included)
  • Transfer files at lightning speed of up 20 Gbps with Thunderbolt 2
  • Sleek, ultra compact design – only 4.6” (116 mm) wide – in brushed aluminum to complement your Mac or PC
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  • Achieve ultra secure data redundancy and increased performance with support for hardware RAID 0, 1 and 10
  • Set up instantly – 2 M Thunderbolt cable included
  • HyperDuo Support for near-SSD performance at HDD capacities
  • Built-in fan for optimum heat dissipation
  • Compatible with SATA revisions I/II/III
  • Built-in Thunderbolt daisy chain port
$496.99 USD
8+ In stock
In stock
US: 8 | CA: 0
In stock
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Technical Specifications

Warranty Information
Warranty 2 Years
Bus Type Thunderbolt
Chipset ID Marvell - 88SE9230
Compatible Drive Types SATA
Drive Installation Fixed
Drive Size 3.5in
Fan(s) Yes
Fans 1 - 70 mm
Interface Thunderbolt
Number of Drives 4
Hot Swap Capability No
Max Drive Capacity Currently tested with up to 6TB 7200 RPM hard drives
Maximum Data Transfer Rate 20 Gbps
Supported RAID Modes RAID 0 (Striped Disks)
RAID 1 (Mirrored Disks)
RAID 10 (1+0, Striped set of Mirrored Subset)
JBOD - (Just a Bunch of Disks)
Temperature Alarm No
Type and Rate Thunderbolt 2 - 20 Gbit/s
SATA III (6 Gbps)
Drive Connectors 4 - SATA Data & Power Combo (7+15 pin) Receptacle
Host Connectors 2 - Thunderbolt™ (20-pin) Female
OS Compatibility OS independent; No software or drivers required Note: the enclosure supports software RAID configured within Windows and Mac OS X operating systems
LED Indicators 1 - Power LED
1 - Drive 1 Activity LED
1 - Drive 2 Activity LED
1 - Drive 3 Activity LED
1 - Drive 4 Activity LED
Input Voltage 100 ~ 240 AC
Output Current 10 A
Output Voltage 12 DC
Plug Type M
Power Consumption (In Watts) 120
Power Source AC Adapter Included
Humidity 20% ~ 80% RH
Operating Temperature 5°C to 35°C (41°F to 95°F)
Storage Temperature -20°C to 50°C (-4°F to 122°F)
Physical Characteristics
Product Height 6.2 in [158 mm]
Product Length 7.7 in [195 mm]
Product Weight 2.6 lb [1.2 kg]
Product Width 4.6 in [116 mm]
Packaging Information
Shipping (Package) Weight 6.2 lb [2.8 kg]
What's in the Box
Included in Package 1 - Thunderbolt 4-bay 3.5in Hard Drive RAID Enclosure
1 - 2m Thunderbolt Cable
3 - Allen key
1 - Universal power adapter (NA / UK / EU)
1 - Instruction manual
Supports any operating system.
No additional drivers or software required.


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Customer Reviews

1 (1 reviews)
1 out of 5 stars
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1 - 1 of 1 Reviews

(1 star) A $496.99 brick - actually two $496.99 bricks!

I have two of these enclosures. They worked find with my Mac Pro late 2013 running Mac OSX Sierra. I upgraded to OSX High Sierra, and the eight drives in the two enclosures went MIA! Occasionally, a drive, or two or three, may mount, but after a few minutes it, or they, prematurely eject, hanging up my Mac Pro. One OWC and two Mobius enclosures work just fine with the Mac Pro and High Sierra, but not these StarTech 4-bay enclosures. No one seems to know why. If you plan on using this enclosure with a Mac Pro late 2013 running Mac OSX High Sierra, verify that the drives will mount reliably before you buy - or make sure the vendor will take back the enclosure if it, and the enclosed drives don't function as advertised.
Comment Helpful? Yes - 1 No - 1 Report
Response from
Brian, Customer Support
Thanks for sharing your review. We apologize for the difficulty you encountered. I see you've been in touch with our Tech Support; we're glad you have the product working again. It's difficult to say for certain what caused this glitch. We believe the root cause is likely the switch to the new Apple File System (APFS) that Apple introduced in High Sierra. APFS is the successor to HSF+, the company’s longtime file system for Macs. We're very sorry again for the trouble. All the best!