ToughArmor MB601VK-B
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mb601vk-1b mb601m2k-1b mb833m2k-b mb834m2k-b
mb991ik-b mb991sk-b mb992skr-b mb992skr-b

The Next Generation NVMe Mobile Rack

The MB601VK-B is ICY DOCK’s next generation PCI-E based mobile rack with ability in supporting Intel, Micron, and Seagate ultra high speed 2.5” U.2 NVMe solid-state-disk in an external 3.5” floppy drive bay.

Superior Performance

Built with the next generation U.2 (SFF-8639) interface, MB601VK-B offers up to 32Gb/s of bandwidth and supports 2.5” U.2 NVMe SSD, SAS and SATA interface 2.5” solid state drives or SSDs. The superior performance of MB601VK-B provides the maximum amount of transfer speed for the most data intensive tasks; such as real time large database transfers and refreshes, massive bulk data swaps from multiple networks, VMware providing virtual operating systems for mulitple computers, and large scale editing of large multimedia assets of virtual reality, video, music, and other graphics between multiple workstations.


*Note: NVMe U.2 host is required to accept NVMe



Convenient Utility & Accessibility

The EZ Slide Mini trays supports U.2 hot-swap feature, which makes U.2 NVMe SSD interchangeability and maintenance completely hassle-free. With a simple swap of the SSD, your overall down time is greatly reduced especially when a drive is needed to be switched. The tray is also designed to accommodate 5 to 15mm height SSD, creating a 2.5" hot swap bay for U.2 NVMe SSD or any standard SAS / SATA SSDs. While the tray is not inside the MB601VK-B, the Anti-Dust Flap feature helps prevent dust from entering into the mobile rack.


Note: the host system has to support NVMe hot-swap function in order for the OS to detect the swapped drive while the system is powered on. If you are having trouble detecting your U.2 NVMe SSD, please refer to FAQ.


The front of the MB601VK-B includes a status LED when the drive is powered on, off and accessed. Active Power Technology (APT) allows the status LED to be on only when a SSD is inserted into the enclosure. For drive security, the eagle-hook lock system on the tray makes sure your SSDs will not eject when not needed. Additionally, the 2 segment key lock provides extra protection to theft of SSDs as well as safeguards any sensitive data.


Full Metal Protection

Making sure that the material used is designed in a way where it can be relied upon for many years after its deployment, the MB601VK-B is constructed out of heavy duty metal throughout the entire device and is capable of holding up in the harshest environments. With the Full Metal design, the ToughArmor is perfect for industrial, military and medical devices that may require a flammability rating as the full metal material is considered to be compliant with flammability requirements.


Optional M.2 to U.2 SSD Converter Adapter

If you have M.2 NVMe SSD, an optional ICY DOCK EZConvert MB705M2P-B M.2 NVMe SSD to U.2 NVMe SSD converter adapter can be used as an alternative inexpensive solution to transform your M.2 to U.2 form factor without the need to purchase another U.2 SSD.

Compatible Drive Trays
EZ Slide Mini Tray MB991TRAY-B Drive Tray for ToughArmor MB607, MB699, MB991, MB994 Series
EZ Slide Mini Tray MB994TK-B Drive Tray with 2-Segment Lock for ToughArmor MB607, MB699, MB991, MB994 Series
Key Features
Fits 1 x 2.5” U.2 NVMe SSD or 2.5" SAS / SATA SSD 
(NVMe U.2 host is required to accept NVMe SSD, SAS or SATA SSD )
Fits any external 3.5” drive bay or floppy bay
Supports NVMe 32Gb/s transfer rate
Supports SATA 6Gbps or SAS 12Gbps (single channel)
Accommodates 2.5" SSD with 5mm, 7mm, 9mm, 12.5mm & 15mm Height
Active Power Technology (APT) - only powers up if there is drive installed in the drive bay
Anti-Vibration Technology (AVT) - creates a safe environment for SSDs
EMI Grounding – protects SSDs from electrical damage
* Eagle-hook lock system & 2-segment safeguard key lock keeps drives secure within the enclosure
* Heavy Duty Full Metal construction, perfect for enterprise applications
* Drive tray is compatible with ToughArmor MB991SK-B, MB991IK-B, MB994SP-4S, MB994SP-4SB-1, MB994SK- 1B, MB994IPO-3SB and MB991U3-1SB *SAS / SATA SSD only
3 Years Warranty
Product Name :
2.5" U.2 NVMe SSD Mobile Rack For External 3.5" Drive Bay
Model Number :
Color :
Support Drive Size :
1 x 2.5" U.2 SSD or SAS/ SATA SSD/HDD
Compatible Drive Type :
NVMe / SATA / SAS (Single channel)
Number of Drives :
Max Drive Height :
Drive Bay :
1 x external 3.5" drive bay
Host Interface :
1 x U.2 connector (SFF-8639)
Power Input :
Via U.2 (SFF-8639)
Transfer Rate :
Up to 32Gbps
Support HDD Capacity :
No Limitation
Drive Cooling :
Metal heat dispersion with passive cooling
Structure / Material :
Full Metal
Support Hot-Swap :
Drive Security :
2 segment key lock
Product Dimension (L x W x H) :
147 x 101.6 x 25.4mm
Product Net Weight :
Package Gross Weight :
Drive Activity LED Indication :
Drive power: solid green; HDD access: flashing green
Package contents :
1 - Device, 1 - user manual, 10 - screw, 2 - key
U.2 Connector Insertion Rate :
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 :
Warranty :
3 years


ICY Tips & Industries Solutions
Jan 2018

Speed up Your System with NVMe U.2 (SFF-8639) / M.2 (NGFF) Drive and ICY DOCK NVME Removable Drive Enclosure


Purchase Links
Product Reviews
By: TheSSDReview - Les Tokar

Posted: January 21, 2018


"So recently… I realized that I have had two HGST SN100 Ultrastar 3.2TB SSDs lying around that have very little use, other than testing.  Yup… 3.2TB SSDs collecting dust.  So… a quick e-mail to Icy Dock and we have two FIT-Flex Trio Adapters, along with two Tough Armor NVMe U.2 SSD Mobile Racks in the mail.  This resulted in an additional 3.2TB of storage space on our newest ASRock X299 Test Bench.......Read full article


Published on October 6, 2017 by Schoondoggy


"In my basement lab, I am working on virtualization and containers. I got the itch for more speed. M.2 NVMe drives are great, but none of my servers have a slot for one. There are PCIe adapter cards for them, but I wanted to be able to move the drive easily between servers. Then I stumbled onto U.2 NVMe drives, similar specs to M.2, but they are 2.5” 15mm drive form factor. I picked up an Intel 750 800GB NVMe, open box deal on NewEgg, great deal! Searching for a way to make it removeable I was referred to Icy Dock. They had recently launched the MB601VK-B, single drive U.2 mobile rack for 3.5” drive bay. The MB601VK-B is a metal design that is very well built. It appears to use the same slide tray as many other Icy Dock products......"

Read more:






Frequent Asked Questions

Q: I'm using Intel/Broadcom Tri-Mode HBA and RAID cards with the MB601VK-B, but the drives do not show up in my system?

A: The issue is caused by RAID card manufacturers using a different pinout for Tri-Mode cards than is typically used for U.2 connections. When using the Tri-Mode cards with U.2 NVMe drives, a U.2 enabler cable must be used for Tri-Mode card to detect the U.2 drive, which reverts the pinout back to standard U.2 specifications. For more information, please Click here.

Q: My NVMe drive did not detect after inserting back into the device while powered on?

A: ToughArmor MB601VK-1B is designed with NVMe drive hot-swap capability;however, the host system has to support NVMe hot-swap as well. For systems that does not support NVMe hot-swap, while your system is powered on, each drive insertion and removal cycle will require a manual refresh from the operating system in order for the system to recognize the drive. If you are still unable to detect the drive after performing the manual refresh, please contact us at for more assistance.


To manual refresh in Windows OS, go to:

Device Manager>Disk Drives>Scan for hardware changes

Image result for disk drive scan for hardware changes




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