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SANS DIGITAL MobileSTOR MS4UM+B JBOD (Hard drives are accessed individually) 4 x Hot-Swappable 3.5" Drive Bays USB 3.0, eSATA 4-Bay eSATA Port Multiplier and USB 3.0 JBOD Tower (Black)

  • SATA
  • 4 x Hot-Swappable 3.5" Drive Bays
  • JBOD (Hard drives are accessed individually)
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The MobileSTOR MS4UM+B is a compact JBOD tower utilizing the latest SATA port multiplier and USB 3.0 technology, where one single eSATA cable or USB 3.0 cable connects to four SATA hard drives. Four hard drives can be access to the computer individually, providing instant storage expansion with ease. Designed with easy installation in mind, the trayless MS4UM+B allows instant setup by simply inserting the hard drives after opening the protective ventilating cover. Both USB 3.0 and eSATA provide high performance transfer rate. USB 3.0 port is now available with the various systems while older USB 2.0 port is backward compatible. Optional USB 3.0 controller card is available. Port Multiplier technology is widely available in current eSATA port, including home sever, laptop and personal computer, and an optional port multiplier supported eSATA controller can be purchased for added performance and functionality, such as RAID application. MS4UM+B is supported in Windows, Linux and Mac, including storage expansion, home server applications as well as personal data backup. Four hot-swappable hard drives slots are behind the front cover to allow for easy trouble shooting and hard drive replacement. The newly trayless design allows easy installation. With adjustable cooling fan design, and high performance transfer rate to support various audio and video formats, MS4UM+B is the ideal storage tower for high-end computing.

  • newegg eSATA and USB 3.0 Featuring eSATA interface with Port Multiplier technology and USB 3.0 port, the 4-bay SANS DIGITAL MS4UM+B allows you to access four SATA hard drives via a single eSATA or USB 3.0 cable. This raid enclosure also supports multiplier enabled RAID adapter for additional RAID application. With the latest 3TB hard drive support, the 4-bay SANS DIGITAL MS4UM+B can achieve up to 12TB in storage capacity.
  • newegg Efficient and quiet cooling The preinstalled 3” ball bearing fan features auto / manual adjustable speed for quiet and efficient cooling.
  • newegg Multiple Platforms support The SANS DIGITAL MS4UM+B supports PC, Linux and MAC OS, including Windows 7 and Snow Leopard/Lion. Cooling fan, hard drive and power LEDs show you the status at a glance.

Learn more about the SANS DIGITAL MS4UM+B

Model

Brand
SANS DIGITAL
Series
MobileSTOR
Model
MS4UM+B

General Spec

Drive
SATA
External I/O
USB 3.0, eSATA
RAID Levels
JBOD (Hard drives are accessed individually)

Expansion

3.5" Drive Bays
4 x Hot-Swappable

System Management

OS Supported
Supports PC, Linux and MAC OS, including Windows 7 and Snow Leopard/Lion OS.

Mechanical Spec

Power Supply
Input: AC 100-240V, 50Hz/60Hz
Output: DC +12V/5A
Max. Power: 60W

General Spec

Dimensions
5.3"W x 7.0"H x 9.7"D
Weight
4.5 lbs.
Features
Interface:
USB 3.0 (backward compatible with USB 2.0)
eSATA (via Port Multiplier)

Form Factor: Compact Tower

Maximum Capacity: 16TB

Drive Interface: 4 x 3.5" SATA

Cooling Fan: 3" Ball Bearing Fan

Status Indicators: Cooling fan status, hard drives status and power LEDs

Trayless design and dust-proof front cover

* Port Multiplier supported eSATA port required for eSATA port.Please see Sans Digital eSATA port multiplier controller card selections.
** SATA/eSATA port require support port multiplier in order for your computer to recognize multiple hard drive when use with eSATA. Port multiplier supported eSATA port is required.

Packaging

Package Contents
MS4UM+B
Power Cord & Power Adapter
USB 3.0 Cable
eSATA Cable
8 x HDD screws
4 x HDD Handle
Screw Driver
Quick Installation Manual

Quick Info

Warranty

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


Customer Reviews of the SANS DIGITAL MS4UM+B

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  • marc m.
  • 5/27/2014 9:29:19 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsNice !!!

Pros: Inexpensive, functionally great ... good performance, fine ergonomics, and hell .. they even supply a screwdriver. Good and responsive customer support -- kudos.

Cons: None to date.

Other Thoughts: Contacted customer support to get the firmware upgrade -- got a reply in 12 hours, worked like a charm -- . Not recommended to use a USB 3.0 powered extension cable .. found this to be a cause for dropouts of USB3.0

Did you find this review helpful? Yes No

  • Andrew S.
  • 5/12/2014 7:37:18 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month

1 out of 5 eggsJUNK

Pros: Looks good, quiet, easy slide in drive setup

Cons: Figuring the issue was with Windows 8.1 I started communicating with Microsoft's USB team and upon, preforming USB trace logs. Microsoft determined this enclosure is the point of failure. Not my computers hardware or, firmware. Again it is the MS4UM+B's firmware/chip set that is the point of failure.

Considering Microsoft is known to blame your computer I found this astounding. A vendors product was blamed for not properly supporting USB standards.

Other Thoughts: High price for bad technology - Sans Digital should include a EASTA raid controller instead of the USB 3.0 seeing as the firmware/chip set being used is known not to work correctly.

Manufacturer Response:

Thank you for choosing Sans Digital products.

We apologize for any issue that you are having with this product.

Please contact us directly at tech@sansdigital.com or at 1-800-980-1988 for more detail support on your particular problem and we can also suggest some units that has a hardware RAID controller that is best suited for your environment.

Did you find this review helpful? Yes No

  • Nicholas G.
  • 3/29/2013 9:08:10 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year

2 out of 5 eggsEdit of previous review

Pros: Nice design, compact, quiet, 4 tb hdd support

Cons: Disconnects constantly with USB 3.0 connection. Read up on the Jmicron chip problem with these devices. I really want to like this device, but my setup wouldn't allow transfers with any of the three different brands or sizes of hdd that I tried with this enclosure.

Other Thoughts: Esata may work excellently, no idea since my mobo doesn't support port multiplying.

I must say customer support is awesome with this company.

Manufacturer Response:

Thank you for purchasing our products.

We have not aware there is any issues with USB 3.0 working with different hard drives. At the same time, there is firmware update for the USB 3.0 to eliminate the problem with disconnect and reconnect. We also recommend connect to a USB hub to check if there is any issues with the onboard USB 3.0 port. Some of the motherboard manufacture creates the USB 3.0 port out of USB 3.0 specification and hence, generating issues.

If you are having problem on the unit, please contact us by calling 1-800-980-1988 for technical support and our engineer will try to resolve it over the phone. You can also contact us at tech@sansdigital.com for e-mail supports.

Did you find this review helpful? Yes No

  • Nicholas G.
  • 3/3/2013 9:42:33 AM
  • Tech Level: Average
  • Ownership: 1 day to 1 week

5 out of 5 eggs compact, supports 4tb drives, quiet

Pros: Solid construction
compact
quiet
acceptable connection speeds as noted by other reviews (usb 3.0 tested)
accepts 4 tb drives
SYNC feature (allows hibernation for efficiency)
unobtrusive front LED lights (blue-small)
straight-forward front mounted buttons and indicators for HDD activity, fan speed, power saving
easily replaceable rear mounted fan.

Cons: unique power connector, may be difficult to replace
chintzy plastic front bay door (everything else appears to be steel)

Other Thoughts: Bought this for a 4 tb, 2tb and 2 1tb drives (formatted ext4) as I didnt want to lose HDD space with the similar RAID enclosure from this manufacturer, and let rsync do the backup work for me. I was very surprised at how truly small this enclosure is. Really nice to get rid of all my external enclosures and their separate power supplies and place everything in this box for easy accessibility. Simple installation: attach the handles, place in the slots, plug in the enclosure and boot my computer, showed up as JBOD should with unique drives (mounted with ubuntu).

Provides nice options for expandability in the future if I wish to buy more 4tb drives to replace the HDDs. What sold me on this enclosure was the power saving feature, I hate the idea of a device being on when not in use, even though multiple power cycling can be hard on drives.

I will update after the device has been used more.

Did you find this review helpful? Yes No

  • Rainer G.
  • 2/19/2013 11:58:11 AM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsgood JBOD enclosure

Pros: quiet fan, easy installation

Cons: eSata connection only worked with provided cable, usb3 connection slow (see below)

Other Thoughts: speed test results:

(All test performed on Mac mini with SSD HD. I transferred 2GB of photos.)

Mac mini with SSD to JBOD (Sans Digital) through USB3
testing harddrives in the enclosure
to JBOD 1TB Mac at 28 MB/s
to JBOD 3TB ExFat 26 MB/s
to JBOD 3TB Mac at 19 MB/s
to JBOD 3TB Mac at 28 MB/s

Mac mini to JBOD (Sans Digital), through eSata(Thunderbolt converter)
to JBOD 1TB Mac at 90 MB/s
to JBOD 3TB ExFat at 90 MB/s
to JBOD 3TB Mac at 47 MB/s
to JBOD 3TB Mac at 90 MB/s
-
from JBOD 2TB NTFS at 102 MB/s
from JBOD 3TB ExFat at 130 MB/s
from JBOD 3TB Mac at 50 MB/s
from JBOD 3TB Mac at 130 MB/s

Through MacMini eSata(Thunderbolt converter), JBOD (Sans Digital) to 8TB Raid5
to JBOD 3TB ExFat at 80 MB/s
to JBOD 3TB Mac at 45 MB/s
to JBOD 3TB Mac at 82 MB/s
-
from JBOD 2TB NTFS at 90 MB/s
from JBOD 3TB ExFat at 74 MB/s
from JBOD 3TB Mac at 47 MB/s
from JBOD 3TB Mac at 72 MB/s

5 out of 5 people found this review helpful. Did you? Yes No

  • Reginald B.
  • 12/11/2012 3:47:30 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsNeed additional pci controller?

Pros: Works but slow with usb 3

Cons: Only one drive recognized with sata cable

Other Thoughts: Will try it with matched drives and a better sata controller.

Manufacturer Response:

Thank you for purchasing our products.

eSATA connection will require to use eSATA port multiplier in order to see all 4 drives. Please make sure the on-board eSATA port support port multiplier. If onboard eSATA port is not supported port multiplier, please see below link for the eSATA controller selection.

USB 3.0 provide about 150MB/s performance.

Please contact us by calling 1-800-980-1988 for technical support and our engineer will try to resolve it over the phone. You can also contact us at tech@sansdigital.com.

1 out of 4 people found this review helpful. Did you? Yes No

  • Michael H.
  • 9/5/2012 9:42:05 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsUSB3 is great, eSATA miss

Pros: USB3, Cost, Capacity, Automatic Fans, Quiet

Cons: eSATA support isn't great - mine might be dead, Short power cord, Short USB3

Other Thoughts: A longer USB cable would be great and better eSATA details/support, but otherwise this is a great device. I was able to pop my RAID10 drives from my Mac Pro into it and plug it right into my MBAir and they picked right up. The drives are loud, but the automatic fan speeds and operation of the case is super quiet. I might end up purchasing another one for such a low price.

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

  • Gavin A.
  • 6/5/2012 5:39:58 PM
  • Tech Level: High
  • Ownership: less than 1 day
  • Verified Owner

4 out of 5 eggsGood so far

Pros: Plug-n-Play, responsive... day#1 is good so far.

Cons: Dropping in 3 x 2TB drives appears harder than expected. Alignment is a little off but take your time to do it right. I also mixed it with a 300MB HD for the four slot. So far, no problems at loading all drives.

0 out of 2 people found this review helpful. Did you? Yes No

  • William W.
  • 5/9/2012 11:01:02 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsWorks fine

Pros: Works fine over both USB3 and esata. Speeds are great.

Cons: When a new drive is added while the drive is on (USB3), all drives are disconnected and then reconnected. This can interrupt transfers. ESATA did not appear to have this issue.
The drive defaults to USB3, and turns off after a few seconds if it is not connected. You have to know to hold down the button to swap it to esata right after you turn it on.

Other Thoughts: The required long press was noted in the documentation for turning the device off, but not for switching input types. It is actually nice that it requires a long press for that (so you don't disconnect your drives), but it would be nice if it auto-detected what connection is used.

3 out of 3 people found this review helpful. Did you? Yes No

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