Advanced Product Search Menu

ToughArmor RAID MB902SPR-B

2 x 2.5” SATA HDD/SSD Removable RAID 1 Drive Enclosure for 5.25” Bay
Product Details
  • Product Introduction
    The ToughArmor RAID MB902SPR-B is a ruggedized full metal dual bay removable drive enclosure that supports 2 x 2.5” SATA hard drive or SSD in a single optical 5.25” drive bay of your computer/workstation system. With the built-in hardware RAID 1 chipset and easy to read RAID status LED indicators, you can conveniently mirror the 2.5” drives for data redundancy without adding a RAID card or RAID monitoring software on the host end. In addition, Central Process Unit (CPU) is normally required to calculate a RAID but, alternatively, by having a RAID chipset on the enclosure, it frees up the CPU overhead and speeds up the whole system. Therefore MB902SPR-B is a perfect removable drive enclosure for mission-critical computer systems that not only make your system work faster but also provides protection against your critical data.
  • Built-In RAID 1 (Safe Mode)
    With the built-in JMS562 hardware RAID chipset, you can create a 2.5” SSD/HDD RAID 1 array in any system without using a RAID controller card. The ToughArmor RAID MB902SRP-B automatically mirrors two 2.5” SATA HDD/SSD for data redundancy to prevent system downtime caused by a single hard drive failure.
  • Advanced RAID Status LED Indicators
    The ToughArmor RAID MB902SPR-B is equipped with easy to read RAID status LED indicators for users to understand the current drive status without using a RAID monitoring software. However, if your application requires using a RAID monitoring software, it is available to download and install on Windows/Mac computers.
  • Removable Drive Trays
    The MB902SPR-B features full metal removable EZ-Slide drive trays found throughout the ToughArmor Series, allowing users to install or remove 5-15mm height drives without opening the computer case or powering off the computer.
  • EMI Grounding
    Making sure your drives are properly grounded is important, especially through many drive swaps. Without it, there is a high possibility that there may be static shocks that could damage your drives or may result in losing your important data. Our EMI grounding technology ensures a stable and safe environment for the HDD/SSD used, which improves reliability.
  • Safe and Secure
    Ruggedized full metal chassis and trays ensure maximum drive security and further aids in drive heat dissipation. A built-in anti-vibration mechanism helps to reduce noise and protects against environmental damage.
  • Packed with Features
    Large ventilation holes are placed around the enclosure to work alongside your computer’s cooling system to keep the drives operating at optimal temperatures
  • The ToughArmor MB902SPR-B supports SATA 7 pin data and 15 pin power cables with locking latches, so you will never need to worry about the cables unintentionally disconnecting from the enclosure. Once the cables are connected, they will stay in place.
  • Enhance Security with Our Lockable Drive Tray
    If your application demands added physical security to protect valuable data from theft, you can upgrade with the compatible lockable drive tray MB994TK-B for an instant security boost to your MB902SPR-B. For bulk orders of MB902SPR-B pre-equipped with lockable drive trays, reach out to our sales team at sales01@icydock.com (Minimum Order Quantity applies).
  • Make ToughArmor On-The-GO! With MB991U3-1SB
    To access your data outside of your system or in a remote location, the ToughArmor MB991U3-1SB is the way to go about. The drive tray slot of MB991U3-1SB is compatible with a variety of ToughArmor drive trays including the ToughArmor MB991, MB992, MB994, MB996 and MB998 series. This allows existing ToughArmor users to access their internal drive externally without opening up the case. It is a great tool for an individual drive diagnostic test. If you need to do a safe data erase or just simply expending system storage capacity, just remove the tray from the internal ToughArmor unit and insert it in the MB991U3-1SB to perform individual tasks externally with USB 3.0 interface. Best of all, the MB991U3-1SB uses USB bus-powered and it does not require a power adapter to operate. Simply connect the USB cable to any system and you are ready to go.
  • ICY DOCK RAID enclosures come with a variety of options and specifications to choose from, including dual 2.5” or 3.5” drives for 5.25” optical bay, dual 2.5” drives for external 3.5” drive bay and dual 2.5” drives that fit into 3.5” HDD bay. Whether you are looking for an ultra-compact RAID enclosure or an advanced RAID enclosure, ICY DOCK has your back!

    ICY DOCK SSD/HDD RAID Enclosures for 5.25” Optical Drive Bay
    Dual 3.5” SATA HDD + HW RAID-1 w/ Advanced RAID status Indicators – MB901SPR-B

    Dual 2.5” SATA HDD + HW RAID-1 w/ Advanced RAID status Indicators – MB902SPR-B
    ICY DOCK SSD/HDD RAID Enclosures for External 3.5” Drive Bay
    Dual 2.5” SATA SSD/HDD + HW RAID-0/1/BIG/JBOD – MB992SKR-B
    ICY DOCK 2.5” SSD/HDD to 3.5” HDD RAID Adapter for 3.5” HDD Bay
    Dual 2.5” SATA SSD/HDD + HW RAID-0/1/BIG/JBOD – MB982SPR-2S R1(special order only)
Which FatCage MB902SPR is right for you?
Model MB902SPR-B MB902SPR-B R1
Support Modes RAID 1 RAID 1 & JBOD
RAID Mode Switch N/A Yes
Difference No JBOD function and required to use advanced erasing software or DOS commands to erase the RAID table written on the drives. Support JBOD mode, which allows you to see two individual drives and quickly erase the RAID table on the drive without using advanced erasing software or DOS commands.
Customizable ICY DOCK Drive Enclosures: Tailored to Meet TAA & UL Certification Standards and More!
At ICY DOCK, we understand the paramount importance of adhering to various industry and safety standards. While our standard products are already crafted with the highest quality in mind, we also provide our customers with the option to customize ICY DOCK drive enclosures and mobile racks to meet their specific certification requirements. This includes standards such as TAA and UL to wide temperature tests.

Our dedicated team is fully prepared to adjust product materials and designs to ensure complete compliance. Furthermore, we offer comprehensive guidance to our clients throughout the certification process. Our goal is to not only meet precise specifications but also ensure that our products successfully pass stringent tests. Below, you'll find a detailed table listing all the optional certifications that can be tested with our customizable solutions.
Optional Certifications Available for ToughArmor RAID MB902SPR-B
TAA Trade Agreements Act Compliance
UL Safety Standard Certification
UL94 Flammability of Plastic Materials
FCC Federal Communications Commission Compliance
Wide Temperature MIL-STD-810H - Method 501.7 & 502.7
Customizing ICY DOCK products for specific certifications involves fees for the creation of the certificates, including necessary testing. Please note that some certificates may require recurring fees to remain valid. For more details and inquiries,please contact us at tech@icydock.com
Main Features
Supports 2 x 2.5” SATA HDD/SSD, from 5-15mm height
Installs into any standard external 1 x 5.25” optical drive bay
Supports up to 6 Gbps data transfer speed
Built-In JMS562 hardware RAID 1 mirroring (SAFE) chipset
Easy to read RAID status LED indicators for drive power, access, fail, and RAID 1 rebuilding process
Anti-Vibration Technology (AVT) – reduces noise and protects against environmental damage
EMI Grounding – protects HDDs/SSDs from electrical damage
Eagle-hook tray latch securely holds the tray inside the enclosure
Ruggedized heavy-duty full metal construction with commercially designed for Medical & Military systems, servers, and Industrial PCs
Industry-leading 5 years limited warranty
Complimentary support from professionally trained technical support agents

Model Number: MB902SPR-B
Color: Black
Support Drive Size: 2 x 2.5" SSD / HDD
Compatible Drive Type: SATA
Number of Drives:
Max Drive Height: 15mm
Drive Bay: 1 x external 5.25" drive bay
Host Interface: 1 x SATA 7pin
Power Input: 1 x 15pin SATA power connector
Transfer Rate: Up to 6Gb/s. (depending on hard drive speed)   
Support HDD Capacity: No limitation
Drive Cooling: Metal heat dispersion
Support Hot-Swap : Yes
RAID Function : RAID 1 (SAFE)
Controller IC: JMicron – JMS562
Structure / Material: Full metal
Dimension (W x H x L): 136.8 x 41.3 x 146.0mm
Product Net Weight: 658.9g
Package Gross Weight: 752g
Supported Operating System: Windows 10, 8.1, 8, 7 and Vista
RAID 1 Status LED Indicator: RAID 1 configuration is normal: solid green degraded RAID 1: LED off
Rebuilding Progress LED Indicator: Divide the progress into four stages: Flashing green
HDD Fail LED Indicator: HDD fail: solid red in corresponded device slot
Double source: solid red in both device slots
Capacity error: solid red in the device slot which has smaller capacity drive
Double Source LED Indicator: Double source: solid red
Capacity Error LED Indicator: Capacity error: solid red
Drive Activity LED Indication: Empty bay: LED off
Drive power: solid green
HDD fail: solid red
HDD access: flashing green
Package Contents: Device, user manual, screws
SATA Connector Insertion Rate: 10,000
Humidity: 5%~65% RH
Operating Temperature: 0°C to 60°C (32°F to 140°F)
Storage Temperature: -35°C to 70°C (-31°F to 158°F)
Compliance: CE, RoHS, REACH
Warranty: 5 years limited warranty

Compatible Drive Tray (Caddy):

  • MB991TRAY-B tray

Related Products Series:

  • Metal+Tray Enclosures
  • Tool-less+Tray Enclosures

ToughArmor Lineup:


Q: Does MB902SPR-B support the new SATA 3.3 Power Disable feature (PWDIS)?

A: The MB902SPR-B does not support the SATA 3.3 PWDIS feature. If you install the SATA HDD/SSD with PWDIS in MB902SPR-B, the drive will not spin, and the system won't detect the drive. See the list below for known SATA HDD/SSD with the PWDIS feature.


While we recommend to avoid using the SATA HDD/SSD with PWDIS, you can use the methods below to disable the PWDIS feature physically if you already purchased the drive:


Method 1 – Using the Molex to SATA adapter or cable to disconnect the power to Pin 3 of the SATA power connector.


Molex to SATA Adapter   Molex to SATA Cable
Molex to SATA Adapter   Molex to SATA Cable


Method 2 – Placing Kapton tape on Pin 1-3 of the SATA power connector to isolate the 3.3V power, as shown below.


Kapton tape SATA power connector


Please contact tech@icydock.com if the problem persists.

Q: What is RAID and what are different mode?

A: Note: Not all ICY DOCK enclosure support each of the RAID modes described below. For more information on the RAID modes that your enclosure supports, refer to the manual or the icydock.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 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 ICY DOCK 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 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.
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


Q: How do I rebuild my RAID 1 array?


1.Determine which drive is operational by using the RAID monitoring software (if available) or test each drive individually on a different hard drive enclosure or by connecting each drive directly to a computer’s SATA port.
2.Replace the failed drive with an identical hard drive.
3.The array will rebuild and is accessible during the rebuilding process.

Note 1: It is recommended to use a new identical hard drive for the rebuild. To use a used drive, we recommend use Window’s DiskPart command to clean and format the used hard drive before you start rebuilding.

Note 2: Before you start the rebuilding process, make sure the replacement drive has no previous RAID table in it.

Q: I'm unable to format a hard drive previously used in RAID configuration and cannot delete the RAID table.


It is required to perform low-level formatting to erase the RAID table written on the drive, which is not supported by Windows disk management. Please check HERE detailed instructions on how to erase the RAID table.

Q: Everything is connected, but nothing is working. What do I do?


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 (USB, SATA, SAS, Mini-SAS, etc)
• Hard drives / SSD (M.2 drive, 3.5'' hard drive, solid state drive, etc)
• Hard drive enclosure (converter, mobile rack, cage, and external enclosure)

To test your setup components, try the following:
• Connect the hard drive directly to the system or use the hard drive in another enclosure to see if the problem is with the hard drive.
• 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.

For additional help with setting ICY DOCK RAID enclosure, please contact us by email.


Q: I feel that the drive tray's upper and lower metal spring is stuck when inserting the drive tray. What should I do?

A: Remove the drive tray from the enclosure and reinsert the tray without putting excessive pressure on the metal mesh sheet in front of the tray. Excessive force on the front metal mesh sheet may bend the top and bottom metal spring, causing difficulties when inserting the drive tray. Therefore, please do not forcingly insert the drive tray when this happens as it may cause damage to the metal spring.


metal spring
Please DO NOT put excessive pressure on the metal mesh sheet as shown

Q: Can I remove any hard drive from the MB902SPR-B RAID array, place it into a drive duplicator to copy data, and then return the hard drive back to the MB902SPR-B RAID array for continued use?

A: Any RAID array created through MB902SPR-B carries a unique RAID table, enabling the MB902SPR-B RAID chipset to recognize the RAID array information on the hard drive. This is crucial for data matching and RAID rebuilding in case of hard drive failure or data corruption. Removing a hard drive from the RAID array and copying data to it via a drive duplicator may corrupt the RAID table on that drive. This can lead to reading errors or a failure in RAID rebuilding process as the RAID chipset may no longer recognize it. As such, we strongly advise against removing hard drives from the MB902SPR-B RAID array for such purposes and also recommend not using the MB902SPR-B as a drive duplicator.



By Raid Owl

Special Thanks to RaidOwl for demonstrating the built-in hardware RAID in our new ToughArmor RAID MB902SPR-B.

Feb 1, 2022

By ServeTheHome

ServetheHome dives down into our all new ToughArmor RAID MB902SPR-B, a built-in Raid enclosure that is ready to be deployed in various industries such as Military and Pharmaceutical.

Jul 18, 2021

By OCinside.de

This time it is the ToughArmor RAID MB902SPR-B removable frame made of solid metal with two 2.5-inch bays, which allows you to easily mirror SATA SSDs or HDDs in RAID1.

May 1, 2023
Related Articles

What is Hardware RAID Storage?

Hardware RAID (Redundant Array of Independent Disks) is a method of combining multiple hard drives or solid-state drives (SSDs) into a single storage unit.

TAA Compliance and ICY DOCK Products

One of the services we offer is assistance to those seeking to implement Trade Agreements Act (TAA) certified products in their projects.

ToughArmor Series Overview

ICY DOCK's ToughArmor series of ruggedized full-metal removable drive enclosures are widely used.

ICY DOCK RAID Enclosures

ICY DOCK RAID enclosures come with a variety of options and specifications to choose from.

warranty warranty
Advanced Product Search Menu
Can’t find any suitable products? Submit your requestHERE
We use cookies in order to give you the best possible experience on our website   More Info
Online Retailers