Discontinued

Dual Bay Gigabit NAS RAID Enclosure for 3.5” SATA Hard Drives w/ WebDAV and Media Server

Create an external dual 3.5in SATA HDD RAID array you can access over a Gigabit LAN using WebDAV, FTP, and Windows® Share services

Product ID: S352BMU3N

2.8 stars (4 reviews) |
  • Access files from a wide range of devices including smartphones and tablets with support for third party iOS and Android WebDAV apps
  • Stream music and video files to Smart TVs, Blu-ray players, and gaming consoles with UPnP and DLNA support
  • Protect your data with redundancy or increase performance & volume capacity, with support for Hardware RAID (0,1, JBOD)

The S352BMU3N 2-Bay NAS RAID enclosure enables you to build a secure external RAID array with two 3.5” SATA hard drives, and connect it directly to your Gigabit network without a host computer for fast network wide access.

Access from any device 

For broad device compatibility, this NAS enclosure features WebDAV allowing you to access files from any web browser-enabled device on the network, such as a computer, Tablet, iPhone®, or smartphone. Third party mobile apps are also supported for intuitive and familiar file management.

Stream digital media anywhere on the network

For hassle-free media integration, the enclosure supports UPnP, and DLNA® allowing you to instantly stream videos, photos, and Music directly to a supporting smart televisions, Blu-Ray /Set-top box, and Video Game Consoles.

Increase security or individual drive capacity

To achieve greater performance or secure data redundancy the enclosure features a built-in hardware RAID controller, supporting RAID 0, 1, and JBOD.

Hassle-free file sharing

For easier file sharing, the enclosure supports FTP and SMB services, enabling you to publicly share files over the network or Internet, with the client software of choice. 

Improve transfer speed capabilities with USB 3.0 DAS

Increase speed locally with USB DAS (Direct-Attached Storage), enabling you to connect the enclosure to your computer using USB 3.0 to provide transfer speeds up 5 Gbps.

To ensure compatibility with your computer system, the S352BMU3N supports all of the leading operating systems, including: Microsoft Windows® (8/7/Vista/XP/Server 2008/Server 2003), Apple® OSX (10.9/10.8/10.7/10.6), Linux, and Google Chrome OS™.

The S352BMU3N maximizes both durability and reliability with a built-in fan, solid aluminum construction, and is backed by a StarTech.com 2-year warranty and free lifetime technical support.

Applications

  • Scenarios requiring easy storage transferability between different computer systems and large volume external storage for backups/archiving
  • Access files on a network from any web browser-enabled device in an office network application
  • Setup a redundant RAID array to protect files against drive failure
  • Access the drive with devices such as tablets and Smartphones that may not have a File Explorer
  • Create a cloud storage solution

The StarTech.com Advantage

  • Broad device compatibility with computers, smartphones and tablets, featuring WebDAV with third party mobile app compatibility
  • Hassle-free operation, with NAS functionality enabling network-wide drive access independent of a computer
  • Achieve greater performance or secure data redundancy with multiple RAID modes

Partner Numbers

  • UPC 065030854719

Compatibility

  • OS Independent logo
OS independent; No software or drivers required

Specifications

Warranty Information Warranty 2 Years
Connector(s) 2 - Drive Connectors SATA Data & Power Combo (7+15 pin)
1 - Host Connectors USB Type-B (9 pin) USB 3.0
RJ-45
Environmental Operating Temperature 5°C to 35°C (41°F to 95°F)
Storage Temperature -20°C to 50°C (-4°F to 122°F)
Humidity 20%RH ~ 80%RH
Hardware Interface RJ45 (Gigabit Ethernet)
USB 3.0
Number of Drives 2
Drive Size 3.5in
Compatible Drive Types SATA
Drive Installation Fixed
Number of internal 3.5 inch bays 2
Fan(s) Yes
1 - Fans 40 mm
Fan Bearing Type Ball Bearing
Chipset ID JMicron - JCS358
Indicators 1 - LED Indicators Power
Drive 1 Activity
Drive 2 Activity
Packaging Information Package Height 18.1 cm [7.1 in]
Package Length 14 cm [5.5 in]
Shipping (Package) Weight 1.4 kg [3.0 lb]
Package Width 25.5 cm [10.0 in]
Performance Maximum Data Transfer Rate 1000 mbps (Ethernet)
5 Gbps (USB 3.0)
Type and Rate USB 3.0 - 5 Gbit/s
UASP Support No
Type and Rate SATA III (6 Gbps)
Hardware Raid Supported Yes
Supported RAID Modes RAID 1 (Mirrored Disks)
JBOD - (Just a Bunch of Disks)
RAID 0 (Striped Disks)
Max Drive Capacity Currently tested with up to 4TB 7200 RPM hard drives
Hot Swap Capability No
Physical Characteristics Weight of Product 627 g [22.1 oz]
Color Black
Material Aluminum
Product Length 18.0 cm [7.1 in]
Product Width 11.6 cm [4.5 in]
Product Height 85 mm [3.3 in]
Power Power Source AC Adapter Included
Input Voltage 100 - 240 AC
Output Voltage 12V DC
Output Current 3 A
Plug Type M
Power Consumption (In Watts) 36
Software OS Compatibility OS independent; No software or drivers required
What's in the Box 1 - Included in Package NAS HDD RAID Enclosure
Ethernet Cable
USB 3.0 Cable
Universal power adapter: comes ready for NA/EU/UK only when you buy in NA/EU/UK; comes ready for Australia and New Zealand only when you buy in Australia and New Zealand
Rubber foot set
Quick Install Guide

Accessories

Discontinued
USB3SAB3MRA

3m Black SuperSpeed USB 3.0 Cable - Right Angle A to B - M/M

Connect USB 3.0 devices, even in hard to reach areas and tight spaces

Your price
£9.99 GBP excl. VAT
£11.99 GBP incl. VAT

Check reseller availability

Where to buy StarTech.com products
USB3SAB6BK

6 ft Black SuperSpeed USB 3.0 Cable A to B - M/M

Connect to your external solutions and transfer data at 10x the speed of USB 2.0

Your price
£5.99 GBP excl. VAT
£7.19 GBP incl. VAT

Check reseller availability

Discontinued
USB3SAB2MRA

2m Black SuperSpeed USB 3.0 Cable - Right Angle A to B - M/M

Connect USB 3.0 devices, even in hard to reach areas and tight spaces

Your price
£3.99 GBP excl. VAT
£4.79 GBP incl. VAT

Check reseller availability

Where to buy StarTech.com products
USB3SAB6

6 ft SuperSpeed USB 3.0 Cable A to B - M/M

Connect to your external solutions and transfer data at 10x the speed of USB 2.0

Your price
£5.99 GBP excl. VAT
£7.19 GBP incl. VAT

In stock: 5

USB3SAB1MRA

1m Black SuperSpeed USB 3.0 Cable - Right Angle A to B - M/M

Connect USB 3.0 devices, even in hard to reach areas and tight spaces

Your price
£7.99 GBP excl. VAT
£9.59 GBP incl. VAT

In stock: 718

Where to buy StarTech.com products
USB3CAB2M

2m (6 ft) Certified SuperSpeed USB 3.0 A to B Cable - M/M

Connect your USB 3.0 devices, with this high-quality USB 3.0 certified cable

Your price
£12.99 GBP excl. VAT
£15.59 GBP incl. VAT

Check reseller availability

Where to buy StarTech.com products
USB3SAB10

10 ft SuperSpeed USB 3.0 Cable A to B - M/M

Connect to your external devices and transfer data at 10x the speed of USB 2.0

Your price
£10.99 GBP excl. VAT
£13.19 GBP incl. VAT

In stock: 3

Where to buy StarTech.com products
USB3SAB3BK

3 ft Black SuperSpeed USB 3.0 Cable A to B - M/M

Connect to your external solutions and transfer data at 10x the speed of USB 2.0

Your price
£5.99 GBP excl. VAT
£7.19 GBP incl. VAT

Check reseller availability

Where to buy StarTech.com products
Your price
£5.99 GBP excl. VAT
£7.19 GBP incl. VAT

Check reseller availability

USB3CAB1M

1m (3ft) Certified SuperSpeed USB 3.0 A to B Cable - M/M

Connect your USB 3.0 devices with this high-quality USB 3.0 certified cable

Your price
£9.99 GBP excl. VAT
£11.99 GBP incl. VAT

Check reseller availability

Where to buy StarTech.com products
USB3SAB1

1 ft SuperSpeed USB 3.0 Cable A to B - M/M

Connect to your external solutions and transfer data at 10x the speed of USB 2.0

Your price
£6.99 GBP excl. VAT
£8.39 GBP incl. VAT

In stock: 42

Your price
£4.99 GBP excl. VAT
£5.99 GBP incl. VAT

In stock: 9

SVA12M5NA

DC Power Adapter - 12V, 5A

Replace your lost or failed power adapter

Your price
£52.99 GBP excl. VAT
£63.59 GBP incl. VAT

Check reseller availability

Where to buy StarTech.com products

Drivers/Downloads

Talk to an Advisor

We are always ready to assist you with any questions you may have.

Live Chat (opens in new window)

Firmware

Manual(s):

Datasheet

Product Support

Talk to an Advisor

We are always ready to assist you with any questions you may have.

Live Chat (opens in new window)

Frequently Asked Questions

Troubleshooting

When you troubleshoot issues with a hard drive enclosure, there are some quick tests that you can complete to rule out potential problems. You can test to make sure that the following components are working correctly and are not the source of the issue:

  • Cables
  • Hard drives
  • Hard drive enclosure

To test your setup components, try the following:

  • Use the cables, hard drives, and hard drive enclosure in another setup to see if the problem is with the components or the setup.
  • Use a different cable, hard drive, and hard drive enclosure in your setup to see if the problem persists. Ideally, you should test a component that you know works in another setup.

When you test the hard drive and hard drive enclosure, it is recommended that you do the following:

  • To check Disk Management, press the Windows key + R, type diskmgmt.msc, and press Enter. Check to see if your hard drive is listed.
  • If the hard drive is listed with unallocated space, the hard drive needs to be reformatted. Right-click unallocated and click New Simple Volume. Follow the on-screen instructions to complete the reformatting.​

Note: Formatting a hard drive erases all of the data on it. Make sure that you back up all of your data before you reformat the hard drive.​

  • If the hard drive is listed as healthy but does not have a drive letter, for example, C:, right-click healthy and click Change Drive Letter and Paths. Click Add, assign a drive letter, and click OK.

Note: A formatted hard drive will not show up in Computer or My Computer until it has a drive letter assigned to it.

Note: Any data currently on the drives will be lost during this process. You need to back up all of your data before you set a RAID mode.

To set a RAID mode, complete the following:

  1. Turn off the hard drive enclosure.
  2. Set the RAID switch to the RAID mode that you want to set.

Note: JBOD is only supported in a DAS (Direct-Attached Storage) connection. If you set JBOD in a NAS (Network-Attached Storage) connection, only one hard drive will be accessible.

  1. Press and hold the Set button and turn on the hard drive enclosure.
  2. When the enclosure is turned on, release the Set button. You may hear a buzzer sound coming from the enclosure, which indicates that you set or changed a RAID mode.

Note: When you change the RAID mode again, complete the steps above to set the unit back to JBOD before you set a different RAID mode.

In order to rebuild a RAID array, you need to replace a physical drive with an identical drive on the same RAID controller. Although standard RAID levels are generally agreed upon throughout the industry, the implementation varies between manufacturers. RAID arrays are typically not accessible when they are moved to another controller, and data may be unrecoverable if the drives are out of order or have been formatted or accessed by another RAID controller.

If a RAID controller has failed, you should get the exact same model of RAID controller.  

Note: If a drive or drives were damaged, it is possible that the RAID array may be permanently unrecoverable.

RAID should not be considered a replacement for backing up your data. If critical data is going onto a RAID array, you should back up the data on another physical drive or logical set of drives.

Rebuild a RAID array

With the following RAID modes, recovery is possible using the same StarTech.com product. Refer to the following table for the appropriate method to use to recover your RAID array.

RAID mode Max # of failed drives Procedure
RAID 1 Only one drive is needed for recovery.
  1. Determine which drive is operational by using the RAID management utility (if available) or test each drive individually on a different hard drive controller (for example, a hard drive docking station or SATA controller).

  2. Replace the failed drive with an identical hard drive.

The array will rebuild and is accessible during the rebuilding process.

RAID 3 Single drive failure will rebuild.
  1. Determine which drive is defective by using the RAID management utility (if available) or with diagnosis LEDs on the controller or enclosure.

  2. Replace with an identical hard drive.

Note: Do not change the order of the drives.

  1. The array may be accessible during the rebuild, but you should let the controller rebuild without interruption so that performance is not compromised.

RAID 5 Single drive failure will rebuild.
  1. Determine which drive is defective by using the RAID management utility (if available) or with diagnosis LEDs on the controller or enclosure.

  2. Replace with an identical hard drive.

Note: Do not change the order of the drives.

  1. The array may be accessible during the rebuild, but you should let the controller rebuild without interruption so that performance is not compromised.

RAID 10 Only one drive in a mirrored set can fail.
  1. Determine which drive is defective by using the RAID management utility (if available) or with diagnosis LEDs on the controller or enclosure.

  2. Replace with an identical hard drive.

Note: Do not change the order of the drives.

  1. The array may be accessible during the rebuild, but you should let the controller rebuild without interruption so that performance is not compromised.

 

You should not upgrade your device's firmware if you do not have any issues with the functionality of your device. The only time you should consider an upgrade is if you are experiencing a problem with the device, and you have confirmed that the firmware addresses this problem.  You can confirm this is the case by reviewing the documentation included with the firmware or by consulting with our Technical Support team. Incorrectly upgrading firmware can result in diminished performance so it is best to contact StarTech.com if you would like to perform this operation.

How To

To confirm that the Mac OS detects your USB device, complete the following:

  1. Click the Apple icon.
  2. Click About This Mac.
  3. Click More Info or System Report.
  4. Under the appropriate heading, confirm that your USB device is listed and that there isn't an error. For example, a network card would be under Ethernet Cards.

You may need to refresh the System Information page after you plug in your device.  To do so, press Command R with the System Information page open.

Your USB device is listed according to the name of the chipset. To determine the name of the chipset of your USB device, navigate to www.StarTech.com and look on the Technical Specifications tab for your product.

Before You Buy

Time Machine requires the protocols CIFS (Common Internet File System) and SMB (Server Message Block) to function. When you use this device as a NAS device, these protocols are not supported. If you use this device as a DAS (Direct Attach Storage) device, you can use Time Machine.

To determine if your hard drive will work in this enclosure, on the product page, click the Technical Specifications tab, and do the following:

  • Make sure that the enclosure supports the storage size of your hard drive. If the storage size of your hard drive is larger than what the enclosure was tested with, the hard drive will likely still work with the enclosure.
  • Confirm that your hard drive uses the same interface type as the enclosure. For example, IDE, SATA, or M.2.
  • Make sure that the enclosure supports the physical size of your hard drive, such as 2.5 inches or 3.5 inches.
  • Make sure that the enclosure supports the height of your hard drive. For example, 9 mm or 15 mm.
  • Verify that the power consumption of your hard drive doesn’t exceed the power output of the enclosure. If you’re using multiple hard drives, make sure that the combined power consumption of all of the hard drives doesn’t exceed the power output of the enclosure.

Note: Not all StarTech.com devices support each of the RAID modes described below. For more information on the RAID modes that your device supports, refer to the manual or the StarTech.com product page.

Redundant Array of Independent Disks (RAID) is a virtual disk technology that combines multiple physical drives into one unit. RAID can create redundancy, improve performance, or do both.

RAID should not be considered a replacement for backing up your data. If critical data is going onto a RAID array, it should be backed up to another physical drive or logical set of drives.

The following are terms that are normally used in connection with RAID:

  • Striping: data is split between multiple disks.
  • Mirroring: data is mirrored between multiple disks.
  • Parity: also referred to as a checksum. Parity is a calculated value used to mathematically rebuild data.

Different RAID levels exist for different application requirements.

Refer to the following table for the list of RAID modes offered by some StarTech.com products:

RAID mode Description Operation Advantages Disadvantages Recovery
RAID 0 Striped disks Data is split evenly between two or more disks. Large size and the fastest speed. No redundancy. If one or more drives fails, this results in array failure.
RAID 1 Mirrored disks Two or more drives have identical data on them. A single drive failure will not result in data loss. Speed and size is limited by the slowest and smallest disk. Only one drive is needed for recovery.
RAID 3 Striped set with dedicated parity Data is split evenly between two or more disks, plus a dedicated drive for parity storage. High speeds for sequential read/write operations. Poor performance for multiple simultaneous instructions. A single drive failure will rebuild.
RAID 5 Striped disks with distributed parity Data is split evenly between three or more disks. Parity is split between disks. Large size, fast speed, and redundancy. The total array size is reduced by parity. A single drive failure will rebuild.
RAID 10 1+0; Striped set of Mirrored Subset Four or more drives are made into two mirrors that are striped. Larger size and higher speed than RAID-1, and more redundancy than RAID-0. No parity. Only one drive in a mirrored set can fail.
JBOD Just a Bunch Of Disks Any number of drives are accessed independently by the operating system. Software RAID modes can be used. Hardware RAID may have better performance. N/A
Big Spanning or Concatenation Data is written on one drive until it is full, and then the next drive(s) until it or they are full. Creates a very large and simple array.

No redundancy.

N/A
Clone RAID 1 + Spare

Two drives have identical data, plus one drive is used for rebuilding in case of a primary array failure.

Seamless operation when one drive fails in a RAID-1 array. Spare drive is not accessible to the user. Only one drive is needed for recovery.

 

Compliance and safety

Compliance letters

  • WEEE
    • Language: English
  • RoHS
    • Language: English

Safety Measures

  • If product has an exposed circuit board, do not touch the product under power.
  • If Class 1 Laser Product. Laser radiation is present when the system is open.
  • Wiring terminations should not be made with the product and/or electric lines under power.
  • Product installation and/or mounting should be completed by a certified professional as per the local safety and building code guidelines.
  • Cables (including power and charging cables) should be placed and routed to avoid creating electric, tripping or safety hazards.
*Product appearance and specifications are subject to change without notice.

Customer Reviews

(4 reviews)
2.8 out of 5 stars
  • 5 (1)
  • 4 (0)
  • 3 (1)
  • 2 (1)
  • 1 (1)
Tell us what you think of this product.
Need a little help getting started?

Check out our review guidelines.

1 - 4 of 4 Reviews
Sort
(3 Stars)

Easy to find. Follow the noise

By: wright2john - 07/25/2015
Works exactly as advertised. Easy to set up. Sadly so very loud. The fan runs constantly (so glad I bought green drives) and rumbles. The vent holes are such that the air sounds overwhelm. Had to relocate my stuff to get the thing away from me.
| Helpful?
Customer Support on 12/08/2015 08:31:29
Hello Wright2john, We appreciate the time you have taken to leave your feedback on the S352BMU3N, and we are glad to hear the unit is working well for you. The noise that you are hearing is likely due to the size of the fan within the enclosure. As it is a smaller, energy efficient fan, it runs at a high RPM to properly cool the connected hard drives. While a larger fan would generate less noise, the size of the enclosure would also need to be greater to compensate. Please feel free to contact our Technical Advisory team regarding this issue, and kindly refer to case number 303-261764. In the event that there is something wrong with your unit, we can certainly replace it via the product’s two year warranty. Thank You, Customer Support StarTech.com http://www.startech.com/techsupport
(5 Stars)

Grate price and features.

By: MYdeviceRepair - 09/16/2016
I just bought this and was up and running in about 5. Easy to use and price got me hooked. Low noise for me, i only hear the drives not the fan as another user had said. Raid works good. The speed over network is not as fast as some others i tried but it's only a little slower then my other two single drive units on rights and faster on reads as it seems to read from both drives for better read speed I LOVE IT
| Helpful?
(1 Stars)

Disaster

By: antipode - 02/14/2017
When using the S352BMU3N as an NFS mounted file system, some scenarios cause huge loss of storage space when coping (under Windows) files from a compressed drive to the NAS drive. I just lost close to two terabytes of storage space under RAID0 on an NFS mount by copying some 10 GB of data into the drivespace, and that's the second time that happened. This is a design fault, and I've not so far found any utility that can even identify the missing drive space. Don't buy this thing, unless you can afford to lose your data.
| Helpful?
(2 Stars)

Missleading

By: David Escalante - 06/26/2017
This is advertised with a Gigabit Ethernet, but Im getting 20MB as maximum. I get 80 to 100 mb/s when sharing files between LAN connector computers, but when I try to upload files to the S352BMU3N, I get between 5 to 20mb. With modern modems having USB capabilities, you get the same performance as plugin a USB pen drive to the modem USB port.
| Helpful?
Brian, Customer Support on 28/06/2017 18:40:34
Thanks for taking the time to leave your feedback. We want to apologize that our S352BMU3N storage enclosure did not work well for you. The NAS feature is great for home users streaming video from it and for backup jobs that run overnight. It may not be ideal solution for all situations. If you have any problem returning the product or would like to discuss this situation in greater details please reach out to us at: https://www.startech.com/support Thank you
Feedback Back to top