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SANS DIGITAL EliteRAID ER104UT+B 0, 1, 10, 3, 5, Clone (N-way Mirror) with Hot Spare and JBOD 4 x Hot-Swappable 3.5" Drive Bays USB 3.0 (backward compatible with USB 2.0) and eSATA 1U 4 Bay USB 3.0 / eSATA Hardware RAID 5 Rackmount (Black)

  • SATA
  • 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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The EliteRAID ER104UT+B is a 4-bay hardware RAID 5 rackmount storage unit that utilizes high performance USB 3.0 and eSATA interfaces to provide over 200MB/s in performance. The included USB 3.0 is backwards compatible with the widely available USB 2.0 port, which is a convenient feature when both USB 3.0 and eSATA connections are unavailable. With built-in RAID 0, 1, 10, 3, 5+hot-spare and JBOD, the ER104UT+B provides hardware RAID redundancy protection against hard drive failures. A brand new RAID mode, CLONE or N-Way Mirror, is also introduced to replicate the saved data throughout each of the installed hard drives. The RAID engine is embedded within the enclosure and performs all RAID parity calculations to reduce CPU utilization from the host computer, RAID controller cards are no longer necessary.

  • newegg Excellent Performance The Sans Digital EliteRAID ER104UT+B 1U rackmount can accommodate four 3.5" SATA hard drives and delivers over 200MB/s read and 170MB/s write performance over the built-in USB 3.0 / eSATA interface, providing an ideal storage expansion and data backup solution for home/small business environment.
  • newegg Hardware RAID Support True hardware RAID design built in the enclosure with support for RAID 0, 1, 10, 3, 5+hot spare, JBOD and CLONE ensures maximum performance and data security with minimized host CPU utilization. In the new CLONE mode (N-way Mirror), all the hard drives connected could be mirrored. CLONE mode is especially useful when users would like to copy data from one hard drive to several hard drives at the same time.
  • newegg Easy Installation Four hot-swappable hard drive trays allow for easy drive installation. Automatic insertion / removal detection and rebuild bring you convenience and peace of mind.

Learn more about the SANS DIGITAL ER104UT+B



General Spec

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 80PLUS; Auto switch for 100V~ 240V; 50 ~ 60Hz

General Spec

19" (W) x 15" (D) x 1.68" (H)
18.0 lbs.
Form Factor: Rackmount

Maximum Capacity: 12TB

Auto Rebuilding: Yes

Cooling Fan: 4 x Internal

Control Interface: RAID Switch

Status Indicators: Power LED, Overheat/FAN Fail LED, HDD Power and Activity LED

Safety Regulations: CE, FCC, UL, RoHS

Over 200MB/s read and 170MB/s write performance.

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

Over 3TB per volume via eSATA and USB on OS that support 3TB and above.

Automatic insertion / removal detection and rebuild.

Built-in rackmount bracket.

Manufacturer Warranty

1 year limited
1 year limited

Quick Info


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

Customer Reviews of the SANS DIGITAL ER104UT+B

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  • Darren A.
  • 2/13/2014 5:48:37 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week

5 out of 5 eggsA Very Nice Unit

Pros: This unit is very fast (1GB/13sec via eSATA on my MacPro), very well-built, and it is very easy to setup and operate. I like the fact that the drive trays require a supplied key to remove, so no knuckleheads can yank your drives when you're not looking. This is a simple, fast, RAID enclosure that simply does what it says it does. I will be buying a second one for my DIT cart soon.

Cons: The only con I can think of at the moment is that I wish there was a locking mechanism for the eSATA cable. Other than that, I'm totally satisfied with it.

Other Thoughts: This unit seems to be a very smart decision. I'm looking forward to using it. I'm so impressed with it, I'm considering replacing all of my desktop RAID enclosures with ER104's instead.

Did you find this review helpful? Yes No

  • Jesus A.
  • 6/9/2013 1:02:57 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsSimple way to extend storage on low end servers

Pros: * Supports USB 3.0 and eSata 3 Gbps
* Compact enclosure, simple installation
* Tech support responds within 1 business day to cases submitted via their web form

Cons: * Additional drives can't be added to an existing RAID0 volume. If you start with 2 drives and then add 2, the volume needs to be deleted and recreated. If you are planning to use 4 drives, add them from the start.

Other Thoughts: Installed it with 4 WDC RED 3TB drives to create a 12TB RAID0 volume for backup storage. Performance is slower than internal RAID, but works fine for archival storage.

Initially formatting the volume via USB seems simpler even if you will be using eSata afterwards.

Did you find this review helpful? Yes No

  • Arlene D.
  • 10/31/2011 12:17:47 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsWorks great -Promocode Misleading

Pros: Works as advertised. No problems with the first unit over a year out.

Cons: NewEgg lists "20% off w/ promo code SANS30U, ends 10/31 " on the page. When I apply the promo code it only give about 12%, or $60. Is this a mistake when 20% should be $99.99? How do I know? I waste 20 minutes contacting customer support to find out the promo code has a limit of $60. Did it say this anywhere? No. Pretty lazy and sort of a bait and switch if you ask me.

1 out of 1 people found this review helpful. Did you? Yes No

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