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Sans Digital 4-Bay USB 3.0 / eSATA Hardware RAID5 Tower Storage Enclosure w/ 6G PCIe 2.0 HBA Card TR4UT+B (Black)

  • SATA 150 & 300
  • 4 x Hot-Swappable 3.5" Drive Bays
  • 0, 1, 10, 3, 5, Clone (N-way Mirror) with Hot Spare and JBOD
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Learn more about the SANS DIGITAL TR4UT+B



General Spec

SATA 1.5 & 3Gb/s
External I/O
USB 3.0 (backward compatible with USB 2.0) and eSATA
RAID Levels
0, 1, 10, 3, 5, Clone (N-way Mirror) with Hot Spare and JBOD


3.5" Drive Bays
4 x Hot-Swappable

Mechanical Spec

Power Supply
150W (115V - 230V Switchable)

General Spec

5.3" x 7.1" x 10.0"
5.9 lbs.
Form Factor: Compact Tower

Maximum Capacity: 12TB

Auto Rebuilding: Yes

Cooling Fan: 3.15" Ball Bearing Fan

Control Interface: RAID Switch

Status Indicators: Activity with Fail and Power LED

Safety Regulations: CE, FCC, UL, RoHS

Bundled SATA 6.0Gbps PCIe 2.0 x1 controller card, support PCIe 2.0 with over 200MB/s performance.

Supports SATA I (1.5Gb/s) and SATA II (3Gb/s) hard drives.

Over 2TB per volume via eSATA and USB on OS that support 2TB and above.

Automatic insertion / removal detection and rebuild.

Compact, stylish 4 bay tower design with protective ventitating cover.


Package Contents
Power Cord
eSATA Cable
USB 3.0 Cable
PCIe 2.0 x1 2-Port eSATA 6Gbps Controller Card
Screws (1 set)
Quick Installation Manual & CD

Quick Info


  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year

Customer Reviews of the SANS DIGITAL TR4UT+B

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  • Howard T.
  • 11/25/2014 12:05:56 PM
  • Tech Level: High
  • Ownership: more than 1 year

1 out of 5 eggsStay away!

Pros: Easy setup, fast disk access.


Other Thoughts: The array is plenty fast and easy to set up. BUT. I have 4 Seagate 3TB drives in a RAID 5 config, and I have one drive that's probably failing. But not failed enough that the array is indicating there's an error. The symptoms are the array stops responding for periods, the disk lights flash in weird patterns, and now some content is inaccessible.

The Sans Digital Hardware RAID tool doesn't give any ability to control the array, and they say that's it's all controlled by the hardware in the box. But since the Event Log shows no error, I can't determine which drive is failing.

I called Sans Digital, and their response was to remove all the drives from the box and connect them one at a time directly to the computer. Then I'm to run Segate's SeaTools software against the drive to see if it's failing.

This is a horrific solution. Their old software RAID boxes could verify and rebuild the array from commands from the web interface. It also had logs that would show the number of bad sectors. This hardware RAID solution, although faster than the software RAID, provides NO recovery options at all.

STAY AWAY from this!

Manufacturer Response:

I apologize for the inconvenience this has caused. For the HW Raid Manager event log, the service must be running for events to be logged. In the event of a failed disk, both the enclosure drive LEDs and the HW Raid Manager will display which disk has failed. Since this wasn't the case, there must be another issue that would require further investigation to determine.

To discuss your case further, please call 1-800-980-1988 to get in touch with one of our Technical Engineers, or email us at

Did you find this review helpful? Yes No

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