ToughArmor MB720M2K-B
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Note: There is a known issue regarding compatibility with Oculink connection. Please refer to FAQ.

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Introducing the ToughArmor MB720M2K-B, the world’s first quad drive ruggedized M.2 NVMe SSD removable enclosure. M.2 NVMe SSDs no longer requires to be installed on to a motherboard or a riser card with a tiny screw and can now be installed and accessed from the front of your computer without any tools. The ToughArmor MB720M2K-B comes with patent-pending tool-less M.2 drive installation design which will alleviate the pain that many user experiences when installing M.2 drives and offer easy drive maintenance and system upgrading.


The ToughArmor MB720M2K-B supports up to 4x M.2 PCIe NVMe SSD with blazing fast PCIe x4 transfer speed up to 32Gb/s per channel via MiniSAS HD (SFF-8643). It also accepts all standard M.2 drives lengths from 30mm to 110mm (2230, 2242, 2260, 2280, 22110). In addition, while working together with numbers of ventilation holes around the enclosure, each drive tray is equipped with a high efficiency aluminum heat sink to ensure all the M.2 NVMe SSDs remain within optimal temperatures even when it is under full load. Ultimately, your drives will be well protected within this full metal drive enclosure and a barrel key lock to prevent any unauthorized physical access.

World’s First Quad M.2 NVMe Removable SSD Mobile Rack

A typical M.2 drive is installed on a motherboard or a riser card and secured by a tiny screw, and it can be very troublesome and time-consuming process to install or remove the drive physically. However, with ICY DOCK's ToughArmor MB720M2K-B, M.2 drives are brought to the front of a computer case and making M.2 NVMe SSD drives installation and removal a more straightforward and efficient process.




M.2 PCIe NVMe SSD drives are most often inserted at a 45-degree angle then screwed down onto the motherboard. When using ToughArmor MB720M2K-B, the user can simply place M.2 SSD in the drive tray, adjust the drive locker to the correct length per M.2 drive type, and push down the drive to lock in place. The whole process will only take users less than five seconds to complete, avoiding the hassle of dealing with tiny easy-to-lose screws while bringing a more efficient and innovative way in installing M.2 drives.

Full Drive Length Support

This innovative adjustable M.2 locker slider accommodates all standard M.2 PCIe NVMe SSD drive lengths including 2230 (30mm), 2242 (42mm), 2260 (60mm), and 22110 (110mm), making this drive tray universal to all drive lengths and future-proofing the extra-long M.2 drive 22110(110mm).


EMI Grounding Technology


Grounding your M.2 is very important through many swaps, to ensure your data and drive are always safe. Without grounding, when swapping drives, there is a high possibility that there may be static shocks, possibly damaging the data on the drive. With our innovative M.2 drive installation design, the adjustable M.2 locker act as a ground and once the M.2 locker clips into the SSD screw hole, the drive will be grounded by the tray and the housing of the enclosure. The grounded connector design protects your drive from static electrical surge, ensuring your data is always safe during drive swapping.


Superior Performance


To fully use the speeds of NVMe M.2 SSD, each drive uses its own miniSAS HD (SFF-8643) connector, maximizing the NVMe M.2 SSD’s potential transfer bandwidth rate of 32Gb/s in each drive, which is over 5 times faster than previous SATA standard, making it an ideal solution for data intensive application such as in real-time servers, high performance PCs, deep-learning machines and 4k/8k/3D media workstations.


ToughArmor Protection


Ensuring the product can be relied upon for many years after its deployment, the ToughArmor MB720M2K-B is capable of holding up in the harshest environments, with a rugged heavy duty metal construction throughout the entire device. The ToughArmor MB720M2K-B full metal design is perfect for industrial devices that may require a flammability rating since all-metal already complies with flammability requirements. Because of the high build quality, it can be used in various enterprise systems including: military and law enforcement deployment along with manufacturing conditions such as embedded control and factory automation systems.


Maximum Cooling Performance


M.2 NVMe SSDs are notorious for their overheating issue, which results in performance degradation and transfer speed throttling. We understand this issue and came fully equipped with an extra-large high-efficiency aluminum heatsink installed onto every ToughArmor MB720M2K-B’s tray. Additionally, each ToughArmor MB720M2K-B includes a pair of thermal heat pads to ensure that excessive heat is dispersed thoroughly throughout the entire heatsink.


Working together with dual 40mm ball-bearing cooling fans,the heat is further dispersed through the intelligently placed ventilation holes. Each fan has three fan speed settings: high, low and off. The user can manually select the proper cooing option to keep the drive stays at optimal operating temperatures even under full load.


Packed with Features


An LED status light built into the tray lets you know your drive is powered up and in use. To save power, the LED is shut off when no drive is installed.


For an additional physical layer of security, the included key-lock can be used to protect against unwanted access and secure drives in particularly rough environment, such as military application and in-vehicle PCs.


Never forget which drives belong in what bays. With our individual drive ID labels, you’ll always know which drive tray belongs in your RAID array or which drives contains certain files. Freely unplug and rearrange them to better suit your configurations or simply remove them for a simplified look


The ToughArmor MB720M2K-B supports 15 pin SATA power cables with locking latches, so you’ll never need to worry about cables unintentionally disconnecting from your enclosure. Once these cables are connected, they will lock and stay in place.

Key Features
Fits 4x M.2 NVMe SSD of all lengths, 30mm (2230), 42mm (2242), 60mm (2260), 80mm (2280), and 110mm (22110).
Adjustable drive locker holds all length drives securely
Tool-less drive installation design for easy drive maintenance and system upgrading
Installs into any standard external 5.25” device bay
Uses 4x miniSAS HD (SFF-8643) to connect, requires NVMe host
Supports the full NVMe bandwidth specification of 32 Gbps per channel
Ruggedized full-metal enclosure meeting flammability requirements
Integrated extra-large high-efficiency heat sink and ample ventilation for excellent passive cooling
2-segment key lock for additional physical security
Eagle-hook tray latch securely holds the tray inside the enclosure
EMI Grounding – protects hard drives from electrical damage
Anti-Vibration Technology (AVT) reduces noise and protects against environmental damage
Industry leading 3-year warranty against all defects
Complimentary support from professionally trained US-based technical support agents
3 Years Warranty
Model Number :
Color :
Support Drive Size :
4 x M.2 NVMe SSD 2230/2242/2260/2280/22110
Compatible Drive Type :
NVMe M.2
Number of Drives :
Drive Bay :
1 x external 5.25" device bay
Host Interface :
4 x miniSAS HD (SFF-8643)
Power Input :
2 x 15pin SATA power connectors
Transfer Rate :
Up to 32Gbps (Depending on hard drive speed)
Support HDD Capacity :
No Limitation
Drive Cooling (Active) :
2 x 40mm fan
Drive Cooling (Passive) :
Aluminum heat sink with thermal pad
Structure / Material :
Metal with partial plastic
Support Hot-Plug
Yes (host must support hot-plug function)
Drive Security :
2 segment key lock
Product Dimension (L x W x H) :
171 x 146 x 41.3mm
Product Net Weight :
Package Gross Weight :
Drive Activity LED Indication :
Drive power: solid green; HDD access: flashing green
Package contents :
Device, user manual, screws, thermal pads, keys
M.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
Purchase Links
Frequent Asked Questions
Q: I'm connecting my Oculink NVMe PCIe HBA/RAID card to the MB720M2K-B via miniSAS HD (SFF-8643) interface, but the U.2 drives did not show up in my system.

A: The MB720M2K-B are not compatible with the Oculink PCIe HBA/RAID cards due to different connector pin assignments used on the device. Please check the compatibility list in the FAQ section for HBA/RAID cards that are compatible with MB720M2K-B.


We plan to release the Oculink compatible NVMe enclosures in the second quarter of 2020, welcome to sign up ICY DOCK Newsletter to receive product updates.

Q: Can you recommend an add-on card that works with MB720M2K-B?

A: The following add-on cards are compatible with MB720M2K-B


HighPoint SSD7120      
Supermicro AOC-SLG3-4E4R AOC-SLG3-2E4R
Broadcom(HBA) *9405W-16i *9400-16i

(2 Ports)

(2 Ports)

Broadcom(MegaRAID) AOC-SLG3-4E4R AOC-SLG3-2E4R

(2 Ports)

(2 Ports)


*U.2 enabled cable is required for Broadcom/Intel Tri-mode cards. Please refer to the Tri-Mode FAQ.

We are currently certifying our NVMe enclosure with the major add-on card manufacturers. We will be adding compatible add-on cards to the list. If you wish to receive an update on compatibility list, please contact us at for more info.

Q: I'm using Intel/Broadcom Tri-Mode HBA and RAID cards with the MB720M2K-B, but the drives do not show up in my system.
A: The issue is caused by RAID card manufacturers using a different pin-out 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 pin-out 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: Your system needs to support the NVMe hot-swap function to recognize the drive automatically when inserting/removing the drive from the NVMe enclosure while the system is powered on. If your system supports NVMe hot-plug function, you can perform manual refresh (scan for hardware changes) from the operating system for the system to recognize the drive. Make sure the enclosure is connecting to SFF-8643/SFF-8639 on the motherboard/add-on card, and scan for hardware changes as image shown below:

Windows 10 / Windows 8 – In the search box on the taskbar, type Device Manager, then select from the menu, right click on disk drive and then select scan for hardware changes.

Windows 7 – Right click on computer icon on desktop and select properties, click Device Manager, right click on disk drive and then select scan for hardware changes.


Image result for disk drive scan for hardware changes

If you are still unable to detect the drive after performing the manual refresh, your system might not support hot-swap and hot-plug functions. We suggest you check with the motherboard/add-on card manufacturer to see if it supports the NVMe hot-swap/hot-plug function.  

Q: The mounting screws for the device seem to be too short to secure the device onto my system, what should I do?
A: The included M3*2.5L screws fit most metal sheets of the computer cases with 0.8~1mm thickness. For cases that have a wider 5.25" bay, make sure you place the device in the center to tighten the screw holes on both sides. Please contact us at if you have a problem securing the drive enclosure onto the drive bay.

Q: Is the ICY DOCK NVMe enclosure supporting the PCIe 4.0 standard?
A: Yes, all ICY DOCK NVMe enclosures support the PCIe 4.0 standard. However, the bandwidth will be limited to PCIe 3.0 when connecting a PCIe 3.0 device to a PCIe 4.0 host. The PCIe 4.0 enclosures are under development. If you wish to receive product updates, please sign up for the ICY DOCK Newsletter.



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