ICYRaid MB662U3-2S R1
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If you’re a professional in the media industry then you likely need reliable data storage with features that support your mission critical projects. The ICYRaid MB662U3-2S R1 features a built-in hardware RAID controller, heavy-duty aluminum case, quiet cooling fan with speed control and removable HDD design making it perfect solution for storage-intensive applications such as digital photography, music libraries, high-speed data backup, audio and video editing.

The MB662U3-2S R1 has USB 3.0 with UASP support to increase speed when transferring or rendering large files. The ICYRaid allows you to choose between RAID 0 (Fast), RAID 1 (Safe), Big and JBOD mode to see two individual drives. The MB662U3-2S R1 version adds an individual rebuild indicator LED to warn you when any drive is defective in RAID 1 mode. You can also download the RAID monitoring software from our site if you prefer to see detailed information about your drive(s).
HDD enclosure made by professionals, for Professionals
The ICYRaid MB662U3-2S R1 is a self contained hardware dual bay RAID HDD enclosure that operates independent of your computer. Which means it won’t share you system resource like a software RAID, and you can connect it to any system that has a USB port to access your data on the go without changing your storage configurations. The MB662U3-2S R1 gives you the flexibility to choose between RAID 0 (FAST – Performance), RAID 1 (SAFE – Protect), BIG and JBOD mode.
RAID 0 (FAST – Performance) you can merge two drives into a single large storage and double the sequential read and write speed up to 420MB/sec in UASP mode (up to 320MB/sec without UASP). This is extremely useful for large data transfer, or playback of multiple HD video streams.
RAID 1 (SAFE – Protect) configuration is the perfect setting for professionals that cannot afford to lose their hard work over a drive failure such as engineers or photographers. Never worry about losing all your data should one of your hard drives inevitably fail. Simply remove the faulty hard drive and insert a replacement drive and watch it rebuild via indicator LED in the rear.

Note: In RAID 1 mode even if the enclosure is malfunctioning, your data can still be accessed with other HDD enclosures, or directly connected via SATA connection on your desktop PC.
BIG - allows you to combine two drives with different capacities into a single large volume to maximize your storage capacity.
JBOD - You can save your data into different drives and read them independently. This is a great way to catalog your data into separate drives which is highly beneficial for anyone that likes to assign different drives for different projects. They can simply swap out drives with the removable HDD design depending on which project they’re working on.
User Friendly Design
Installing and maintaining the MB662U3-2S R1 requires no extra tools, as everything you will need is included. The ICYRaid MB662U3-2S R1 uses our convenient tray-less design to simply make any installation a seamless transition to getting your configuration started. Once you have your hard drives ready, simply open each door by pressing the spring loaded button, slide in your hard drives, and select the RAID setting you like. After that, turning on the device will automatically start the process on its own.
The easy to read front LED indicators will indicate when a drive is ejected, accessed, or has failed. When the unit is in the process of rebuilding the RAID table in RAID 1 mode, a rebuilding indicator light in the rear will display. The ICYRaid MB662U3-2S R1 conveniently adds LED control so the front and rear LED indicators can be disabled when needed. This is perfect for people who set the enclosure in their bedroom and prefer to turn the LEDs off at night; this function can be changed via dip switch on the rear panel. Additionally, the easy-to-use RAID monitoring software lets you easily monitoring the RAID status with both PC and Mac.
SuperSpeed Performance
Take advantage of USB 3.0 interface with UASP support (PC users require Windows 8 and Host support, Mac supports it natively). Users will be able to transfer photos, home videos, movies, and music at blazing fast speeds. The USB 3.0 interface is also backwards compatible with USB 2.0, so using the MB662U3-2S R1 on your legacy PC or Mac is not a problem. If the system supports USB 3.0, you will be able to take advantage of the superior performance capabilities – which is crucial for professionals who want tools that perform their jobs quickly and efficiently.
Supreme Build Quality for Maximum Reliability
It is known that the most common causes of disk failure are poor heat management and mechanical agitation. Taking this into consideration, the build of the MB662U3-2S R1 uses a solid aluminum body construction which adds heat dissipation, strength, and protection to your hard drives. The ICYRaid MB662U3-2S R1 in addition reduces external vibrations from reaching the sensitive hard disks by enclosing the drive within a vibration reducing cage, minimizing the possibility of disk damage.
Effective Cooling
Protecting your data also requires that it is constantly maintained to perform at its best. Because hard drives are susceptible to heat failure, it is important to have an active cooling solution. Using the ultra-quiet ball bearing 40mm fan with variable fan speed control ensures optimal heat dissipation or quiet operation for a range of applications such as a recording studio or production room.
Optional EZConvert for 2.5” SSD support
Use our lineup of EZConvert 2.5” to 3.5” SSD converter to install a 2.5” SSD and take advantage of the blazing fast speed of SSDs for the ultimate video editing experience achieve up to 420 MB/s sequential transfer speed.
Key Features
Built-in hardware RAID controller allows four different configurations:
Tool-Less design for easy hard drive upgrade or replacement.
Plug & Play SuperSpeed USB 3.0 interface with UASP support.
Supports 2 x 3.5” SATA I / II / III hard drives.
Supports the latest 14TB HDD per bay in all 4 RAID modes for up to 28TB of storage.
Front LED indicator light to monitor disk status in RAID.
Rear LED indicator light for RAID rebuilds status.
Designed for professional users in any industry.
The front & rear LED can be disabled when needed.
Solid aluminum body construction for portability, heat dissipation and extra protection.
Built in security slot for security cable kit.
Compatible with Mac OS X Time Machine.
Designed for both Mac and PC systems.
Limited 3 year warranty to complement the typical warranty of a hard drive.
3 Years Warranty
ICY DOCK ICYRaid MB662U3-2S R1 Dual Bay Tool-less 3.5" SATA III HDD USB 3.0 External RAID Enclosure (Support UASP)
Product Name :
Dual Bay 3.5" SATA Hard Drive USB 3.0 External Raid Enclosure
Model Number :
MB662U3-2S R1
Color :
White with silver aluminum body
Support Drive Size :
2 x 3.5”SATA I, II & III HDD
Compatible Drive Type :
Number of Drives :
Max Drive Height :
Drive Bay :
Host Interface :
1 x USB3.0 Port
Power Input :
Power Adapter & Power Core (DC 12V/4A)
Transfer Rate :
USB3.0 up to 5Gb/sec
USB2.0 up to 480Mb/s
Support HDD Capacity :
Drive Cooling :
1 x 40mm Cooling Fan with Adjustable Fan Speed Control
RAID Function :
Structure / Material :
Aluminum body with partial plastic
Support Hot-Swap :
Drive Security :
Product Dimension (L x W x H) :
205 x 60 x 134 mm
Product Net Weight :
Package Gross Weight :
RAID Status LED Indicator :
RAID rebuild: flashing white; RAID rebuild finished - LED off
Drive Activity LED Indication :
HDD idle: solid white; HDD access/ RAID rebuilding: flashing white; HDD fail: solid red; Empty bay: LED off
Package contents :
Device, user manual, USB 3.0 cable, power adapter, power cord
SATA Connector Insertion Rate :
Humidity :
5%~65% RH
Opertating Temperature :
0°C to 60°C (32°F to 140°F)
Storage Temperature :
-35°C to 70°C (-31°F to 158°F)
Compliance :
Warranty :
3 years


ICY Concepts
Add Drive Failure Protection to your NAS or Home Server System and Increase your Storage Capacity with the MB662U3-2S R1
The average home is becoming a digital playground for all types of media; therefore more and more home owners have begun adding Network Attached Storage to their home setup. With Network Attached Storage (NAS) or a home server you can easily share your documents, photos, videos and all types of media with multiple systems, including game consoles, smart TVs, desktop computers, MacBooks, media boxes, mobile devices and more. But what happens if the drive has failed? No worry, the ICY DOCK’s ICYRaid MB662U3-2S R1 is your answer. The ICYRaid MB662U3-2S R1 has a built-in RAID controller that operates independently of your computer. It takes 2 x 3.5” SATA HDD and supports the newest 8TB drives on the market which gives you up to 16TB total capacity in BIG / RAID 0 (FAST) mode, and up to 8TB total capacity in RAID 1 (SAFE) mode. The setup is easy, just simply connect the ICYRaid to your Home Server or NAS system with the USB interface and then you are able to exchange data between your server and ICYRaid.

The JBOD mode allows you to see two individual drives. With a unique tray-less design, you can use the ICYRaid as docking station for quick drive access; allowing you to swap your digital collection as easy as 1, 2, 3. You can also attach the MB662U3-2S R1 to your wireless router that has a USB 2.0 / 3.0 port and supports data share function.

Note: Your NAS, Wireless Router and Home Server need to support USB 2.0 / 3.0 with port-multiplier in order to see two drives in JBOD mode. We highly recommend you verify the specifications with your router manufacturer before you make your purchase.
Product Reviews
Published on Mar 31, 2015
By PureSolidness
Easiest RAID Solution? ICY DOCK ICYRAID Review
Link to video: https://www.youtube.com/watch?v=kO8z1j0zjDE
Published on July 8, 2016

by Geekanoids

Published on Jan 13, 2016

by Roberto Jorge Tech Reviews

"The Icy Raid is a External Raid Enclosure Solution from Icy Dock, capable of Raid 0, Raid 1, JBOD and Big modes trough hardware Raid and with a USB 3.0 connection.

The built quality is great as its made of a brushed aluminum enclosure all around. The only plastic found is on the front bay doors as the back is also made of white metal."



Customer Review

Best 2.5 to 3.5 HD Adapter on market

Great design for securely installing 2.5 HD into adapter to use in my case into 3.5 multibay external disk drive enclosure. Everything was engineered feel and fit perfectly. Looked at virtually every adapter on the market, and this was the best. Customer service response too for questions. Price is a bonus.

Other Thoughts: Wish the rebates were extended.


by Dmitriyo. on 4/15/2016.

Best 2 bay enclosure bar none ...

Had a previous IcyDock MB622US-2S USB 2.0 enclosure (discontinued) which lasted me forever which I still use, however this unit had a per drive size ceiling of 2TB ... the active fan keeps the drives about 35C.

Purchased this new enclosure for the same reasons incl. the USB 3.0 interface, 8TB per drive ceiling and active cooling since my Seagate Backup Plus drives keep failing on me every 2 - 3 yrs from overheat failures. The 2 drives in this new unit run 32C idle and about 37C under load ... whereas the Seagate enclosures ran about 45C all the time.

Missing from this new unit are a few RAID modes which I never used anyways, on this new unit is a slider switch between JBOD, RAID0, RAID1 and Big (concat) which IMHO should meet most home consumer needs.

I expect this new unit to last me as long as the previous as I grow my use from 4TB to 8TB over time. Keep up the solid products & build quality. Thanks!


by Daniel T. on 12/8/2015.


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September 2013

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Purchase Links
Frequent Asked Questions

Q: What is RAID and what are different mode?

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 setup or change the RAID mode for my MB662U3-2S R1 USB 3.0 RAID Enclosure?

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 enclosure.
2. Use a USB 3.0 cable to connect the MB662U3-2S R1 enclosure to a computer.
3. Set the RAID switch to the RAID mode that you want to set.
4. Turn on the enclosure.
5. When the computer is turned on, check disk management to see if your RAID array is listed. If the RAID array listed with unallocated space, the RAID array needs to be reformatted.

Note 1: When you change the RAID mode, complete the steps above to set the unit back to JBOD before you set a different RAID mode.

Note 2: You can use the RAID monitoring software to verify the RAID model status. The RAID monitoring software can be downloaded here.


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 at a slow speed.

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. To erase the RAID table created by MB662U3-2S R1, turn off the enclosure, insert the drive into the MB662U3-2S R1 and set the RAID switch to JBOD mode and then turn on the enclosure. The RAID table will be erased once you successfully switch to JBOD mode. This procedure deletes all of the data on the drives. Make sure you back up all your data before you switch to JBOD mode.

Note 3: For better data security, when creating RAID 1 array, the JMS562 RAID chipset saves the RAID table to a deep layer (LBA) of the drive, which can only be erased by JMS562 chipset (MB662U3-2S R1) in JBOD mode. Therefore, we recommend wiping the RAID table before you reuse any drive that ever used in MB662U3-2S R1 with RAID 1 array.


Q: How can I check if my USB device is properly detected by Mac OS?

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

Verify that the device appears in System Information: Choose Apple menu > About This Mac. In the window that appears, click Overview, then click the System Report button to open System Information. In the window that appears, see if the USB device is listed below Hardware in the list on the left.

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.icydock.com and look on the Technical Specifications tab for your product.


Q: Will my hard drive or solid-state drive work in this enclosure?

• 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 SAS.
• Make sure that the enclosure supports the physical size of your hard drive, such as 2.5 inches drive or 3.5 inches drive.
• Make sure that the enclosure supports the height of your hard drive. For example, 7mm, 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.

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, phone, or live chat.



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