ICYCube MB561U3S-4S
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Introducing the ICYCube MB561U3S-4S 4-Bay external 2.5” & 3.5” HDD JBOD enclosure with SuperSpeed USB 3.0 and eSATA interface. The MB561U3S-4S is designed for those in need of large data storage with a small footprint and supreme build quality. The USB 3.0 interface allows you to access up to four individual drives at up to 5Gbps and is backward compatible with USB 2.0. The eSATA interface delivers fast SATA III speed, supports eSATA port-multiplier function which allows you to access four individual drives via single eSATA connection (host requires eSATA port-multiplier support),and is compatible with most of RAID controller card with eSATA port-multiplier interface. The 4 bay capacities give you enough room to optimize your data storage system with efficiency.

The ICYCube MB561U3S-4S supports both 2.5” and 3.5” SATA SSD/HDD with our new EZ-Tray design, allowing you to mix your 2.5” and 3.5” HDD within a single enclosure to save desktop space, power consumption and cost. The detachable 80mm cooling fan provides excellent cooling to the drives, and the 3 speed fan switch gives you full control over noise and temperature. The built-in power supply removes any requirement for an overly large power brick which helps you save space.

The ICYCube MB561U3S-4S is a quad bay USB 3.0 & eSATA JBOD enclosure with fully loaded functions and eye-catching design. It is perfect for media professionals, and people who need a high quality HDD enclosure for their storage needs.
Multiple Interfaces with Great Capacity
Having multiple drives conveniently placed into a single enclosure can provide many benefits such as the ability to transfer files between drives, backing up all your precious files or storing/organizing large archives. More importantly, doing this saves you big bucks from buying additional enclosures, gives you more desktop space and saves energy. The ICYCube offers both USB 3.0 and eSATA interface. USB 3.0 interface allows you to access four drives with up to 5Gbps transfer speed, and is backward compatible with USB 2.0, the most common interface for many things, which makes ICYCube a perfect HDD enclosure for various applications such as: media archives, network attached storage, external server storage, IT data transfer tool and more. With USB 3.0 interface, you’ll have blazing fast transfer speeds for applications such as data backup from your system to your external enclosure which can save you time.
The eSATA interface delivers fast SATA III speeds up to 6Gbps, and allows you to access four drives via a single eSATA connection (eSATA port multiplier required). It is compatible with most of RAID controller card that has eSATA port-multiplier interface, which gives you an option to setup a hardware RAID externally, perfect for system that has limited space. This tiny enclosure can take up to 32TB total capacity with largest capacity drives available on the market (8 TB), which is more than enough space for most of the applications.
The New EZ-Tray Takes It All
The new EZ-Trays provide the best compatibility for both 2.5” SATA HDD/SSD and 3.5” SATA HDD at all heights, ranging from lighting fast 2.5” SATA III SSD to 3.5” SATA 8TB HDD. The drive installation is simple: place the drive in the tray aligning the screws holes, screw in the provided screws, and you’re set! If you have more than four drives, additional trays can always be purchased. In addition to that, you can quickly swap out drive via hot swappable bays so you aren’t required to shut down your computer or the ICYCube, saving you valuable time. (Note: the USB host will refresh while swapping drive via USB. The remaining drive(s) will cycle during this process)
Better Cooling for Better Performance
Our ICYCube was designed from the ground up with intentions of fulfilling the demand of our customer base, so we packed it full of awesome features. It features an 80mm detachable fan for easy maintenance. Simply remove the fan unit, use a dust blower or a damp towel to wipe off the blades, and snap it back in; it can’t get any easier to clean. We’ve included a fan speed switch that allows you to select between a whisper-quiet low, a rapid cooling high, and an auto setting based on Smart Cooling Technology. The Smart Cooling Technology determines the temperature of your drives, and changes fan’s RPM accordingly to keep your drives nice and cool.
The Classic Remains a Classic
To define the ICYCube MB561U3-4S as “beautiful” would be an understatement. Crafted from Hi-Grade aluminum with two different available color schemes, the ICYCube sports a matte coat with a hint of glittery shine similar to that of Apple’s Macbook series. The front panel displays its fine glossy coat contrasting the outer housing in a unique blend. Our ICYDOCK logo is displayed on both sides so you can be assured that your product is an ICY DOCK –known for reliability and built tough. The low profile white LED indicator light indicates activity of each hard drive. This allows you to know which drives are currently being accessed or whether they’re sitting idly waiting for activity. We’ve used a moderately illuminating white LED for the indicator light so it shines just bright enough that you can be notified of activity, but not so bright where it’s distracting. Also the ICYCube MB561U3-4S uses a built in power supply to keep all major components within the unit so there’s no need for clunky power bricks to occupy any space on your desk, so you can keep your work space nice and neat.
Lastly, ICY DOCK has a 3 year warranty which gives you the peace of mind to feel confident for years to come.
Drive Tray
Interchangeable Tray Model:
Key Features
Plug and play installation, no drivers required
SuperSpeed USB 3.0 with up to 5Gbps transfer speed
Backward compatible with USB 2.0 interface
eSATA connection with up to 6Gbps transfer speed (port-multiplier host required to access all four drives)
New EZ-Tray system supporting both 2.5” and 3.5” SATA HDD/SSD of all heights
Adjustable cooling fan with 3 speed settings (low, high, and auto)
Support largest capacity drives available on the market (8 TB)
Removable EZ-Tray design allows you to quickly swap out drives
Moderately illuminating white LED for power & drive activities
High grade aluminum alloy frame with detailed matte finish
Include 4x EZ-Trays which features shock absorbing technology to help protect your drives
Detachable 80mm ball bearing rear cooling fan provides easy maintenance
Integrated power supply, so big power bricks aren’t necessary
Rubber padded soles for enhanced stability
3 Years Warranty
ICY DOCK ICYCube MB561U3S-4S 4 Bay USB 3.0 & eSATA(PM) Hot Swap 2.5"/3.5" SATA HDD/SSD External Enclosure - White
Model Number :
Color :
White with silver aluminum body
Support Drive Type :
4 x 2.5” or 3.5” SATA I/II/III hard drive & SSD
I/O Port :
1 x USB 3.0 port, 1 x e-SATA (port multiplier) port
Transfer Rate :
USB3.0 up to 5Gb/sec
USB2.0 up to 480Mb/sec
eSATA up to 6Gb/sec
Power Supply :
12V/4A (maximum) / 5V/6A (maximum)
Cooling System :
80 x 80 x 25 mm fan
Fan Speed Control :
High / auto / low
LED Indicator :
HDD access (flashing white LED)
Device power (solid white LED)
OS Requirements :
Windows XP, Windows Vista, Windows 7, Windows 8
Latest version of Mac OS X 10.5, 10.6, 10.7, 10.8, 10.9
Hardware Requirements :
System with USB 2.0/USB 3.0/eSATA interface
eSATA port multiplier function is required for eSATA interface
Material :
Aluminum body with partial plastic
Dimension (L x W x H) :
141 x 175 x 235mm
Weight :
Package Contents :
Device, user manual, screws, power cord,
eSATA cable, USB 3.0 cable


ICY Concepts
Expand your NAS or Home Server Storage Capacity up to 32TB with ICYCube MB561U3S-4S / MB561U3S-4SB
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, desktop computers, MacBook, media box, mobile devices and more. What happens if you run out of the space? The ICYCube USB 3.0 & eSATA enclosure is your answer. It takes 4 x 3.5” SATA HDD and supports the newest 8TB drive on the market which gives you up to 32TB in total capacity (hard drives are not included). The ICYCube is designed to be compact with a small footprint. It has a built-in power supply so an external power brick is not required. The removable 80mm cooling fan provides effective cooling to keep the drives cool 24/7. You can also attach the ICYCube to your wireless router that has a USB 3.0 / eSATA port and supports data share function.

The MB561U3S fully supports SATA III speeds and is built with a solid aluminum chassis for maximum performance and reliability. It is recommend for advanced NAS or Home Server users that have network systems that supports USB 2.0/3.0 or eSATA interface with port-multiplier function.


Product Reviews
By: Tyler Bernath

Date: July 08, 2015

"Comprised of solid performance, build quality and great looks, the ICYCube is a great solution for those wanting to store large amounts of data."

Author: Allyn Malventano

Date: April 15, 2015

"I was impressed with the build quality of these two drive enclosures. They are reasonably durable and should have no issue safely containing drives. Their solid anodized aluminum shells are not bad to look at, either. The ICYRaid has simple hardware RAID features easily selected by a rear panel switch, making configuration a no brainer. The ICYCube only operates as a JBOD unit, meaning those desiring RAID are going to have to rely on software-RAID features of their OS (as well as the corresponding performance hit when using a software RAID through a single external interface link)."

Published on Oct 14, 2014


"The ICY DOCK ICYCube is a quad bay USB 3.0 enclosure with fully loaded functions and eye-catching design. It is perfect for media professionals, and people who need a high quality HDD enclosure for their storage needs."

Oct 03, 2014

Bob Buskirk


Published on Tuesday, 12 August 2014 20:15

Written by Wade Arenberg -funkindrago-

" Icy Dock ICYCube is a well-built hard drive enclosure. If you are looking for one that can handle up to four 6TB drives, then you would not be sorry choosing the ICYCube. Installation is incredible easy and the cooling fan on auto mode remained quiet even in a hot room, yet it kept my drives cool. The Icy Dock ICYCube earns the HiTechLegion.com Gold award for its build quality "



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