Hardware RAID 5 Storage supports 4-Bay 2.5”/3.5” SATA III HDD/SSD

Supports 24W USB Power Delivery, and One DisplayPort support DP1.1a for 2nd monitor expansion


Provides one USB 3.2 Type-C, eSATA interface, Hot-Swappable Drive, LCM and Touch Button





1. All new design with LCM and Touch Button hardware RAID solution

● Touch button make SR4-SB31+ is not only a more safety product but also has the elegant outlook

2.  The best data storage solution for monitor expansion and charging


● Support 24W (12V/2A) / 18W (9V/2A) / 15W ( 5V/3A ) Power Delivery Charging for notebook and mobile phone 


● DP 1.1a DisplayPort connect DVI、HDMI、VGA display devices


3. SR4-SB31+ is with three RAID modes based on needs, RAID 5 is for Real-Time Recover


● Support RAID 0/5/JBOD modes

4. USB 3.2 Type C & eSATA interface, suitable for MAC or PC


● Support USB 3.2, Plug and Play


● Support USB Type-C interface, reversible.


5.  Support both of 3.5" HDD and 2.5" HDD & SSD 


● Plug and play and Hot-Swappable Drive


6.  Designed with Aluminum Construction for High Quality and Fast Heat Dissipation

7.  Low noise fan design with fast heat dissipation


All new design with LCM and Touch Button hardware RAID solution


The SR4-SB31 is an all in one hardware RAID solution that embeds the JMB394 RAID controller chipset that require no extra cards. It is economical and efficient RAID storage, that can be easily connected to a computer, completed the installation and switched the RAID mode levels based on needs.



The benefit of Touch Button


The newly exterior of SR4-SB31+ is designed with the touch button for power and setting function for the user friendly. Firstly User just need to turn on the power switch on the backplane and can touch power on and off the device for ease use at all the times.


It also has the special design on the power-off mode to avoid the users accidentally touch the power and the device shut down immediately. All features make SR4-SB31+ is not only a more safety product but also has the elegant outlook.

User-friendly LCM display

Equipped with clear readable LCM display and LED indicators for system monitoring during operation, so users can easily grasp the status of the system at all times. Moreover, it comes with visual and audio alarms whenever failure occurs.


The best data storage solution for monitor expansion and charging 


The SR4-SB31+ supports USB 3.2 Protocol which gives you an up to 3Gbps data transfer rate. You could easily use it for storage data and editing your huge photo galleries directly from your Macbook Pro (Type-C) from its easy and friendly to use features.


The Type-C connector provides 24W (12V/2A) / 18W (9V/2A) / 15W ( 5V/3A ) USB Power Delivery (PD) that can charging the notebook and mobile phone when data been accessing. SR4-SB31+ also provides one DP 1.1a DisplayPort for 2nd monitor expansion.


SR4-SB31+ is with three RAID modes based on needs, RAID 5 is for Real-Time Recover


The SOHORAID SR4-SB31+ is a four drive storage system with JBOD / RAID 0 / RAID 5 storage option for storing contents in large scales. Industrially designed with aluminum exterior, that is tough and durable for hard drive protection of the highest grade.
Stardom SR4-SB31+ enables you to back up your documents, family photos, event movies, downloaded files, or other digital assets reliably and efficiently. If a hard drive happens to fail, simply swap out the defective drive and replace with a new one.  You can keep working on your projects and SR4 will automatically rebuild the data in the background.

RAID 5 for data safety & RAID 0 for high-speed performance

SR4-SB31+ provides two storage options of RAID 5 or RAID 0. With RAID 5, a user will have the maximum protection of his/her data with allowance for a single drive failure but yet all data will be kept intact. In the RAID 0 mode, a user will have the benefit of a single massive volume for storage with high I/O speed, with sets of data being striped across the four enclosed drives.


USB 3.2 & eSATA interfaces for Mac & PC

With high-speed 3G e-SATA and USB 3.2 Type-C interfaces, the SR4-SB31+ can be used in both Mac & PC environments providing great convenience and flexibility.

Support USB 3.2, Plug and Play


The SR4-SB31+ is equipped with RAID 0 / RAID 5 / JBOD storage mode. Users can attain up to 250MB/s transmission data speed with USB 3.2 Type-C interface connected to Mac Pro Thunderbolt 3 (USB-C). Whether it is used for searching and editing photo galleries, or for video editing and synthesis, the SR4-SB31+ promises smooth and easy operation.


Support USB Type-C interface, reversible


The new SR4-SB31+ support the USB Type-C interface, which is based on the USB 3.2 specification, is designed to be identical in appearance. This means that users could easily insert any sides of USB cable without distinguish connector of the front or rear side.

Support both of 3.5" HDD and 2.5" HDD & SSD 


SR4-SB31+ is a 4-bay chassis provides you the big storage capacity and supports any kind of disk capability of 3.5" and 2.5" SATA/SSD HDD products. It is designed with strong aluminum extrusion and chassis provides an excellent protection for your storage disks that you could fully rely on it for professional creative or mobility heavy works. 


Tough and durable shielding body

The SR4-SB31+ has a seamless 4.0 mm thick all-aluminum housing that is rugged enough to withstand the most demanding of use. With aluminum body, the system dissipates heat faster for a greater stability and performance that also extends the lives of the drives.


Low noise fan design with fast heat dissipation


The new SR4-SB31+ has a built-in low-noise fan, to allows the device to quickly dissipate heat without affecting the transmission perofrmance. You could manually adjust fan switch on the rear.


In addition, if the fan fails or the device temperature is too high, the buzzer will beep and let the user know that the device has failed. The user can turn off or turn on the buzzer through the mute adjustment switch on the back panel.

Compact and portable too

For field editing applications, the SR4-B31+  can be made portable as it comes with a grip handle, which you can choose to install for making creative contents mobile convenient and less bulky.


Compatible with Time Machine

SR4-SB31+ is also compatible with Apple’s Time Machine™ to backup your critical system files, applications, data files, music, pictures, videos and more.


Use with iMac Pro, RAID 5 could back up the important data

You can also connect the USB 3.2 Type-C cable to an iMac Pro device, and set up the SR4-SB31+ device to the RAID 5 mode. It could easily to expand the capacity of your storage to achieve a full range of data backup without worrying about hard disk damaged or important information lost. 

Product View



Model No SR4-SB31+ (Silver) / SR4-SB31+B (Black) 
Interfaces eSATA Port x1,
USB 3.2 Type-C x1 ( up to 3Gbps ), 
Support 24W (12V/2A) / 18W (9V/2A) / 15W ( 5V/3A) Power Delivery.
DP 1.1a DisplayPort x1
Touch button function
Compatible Drive 4 x 3.5”/2.5" SATA III HDD/SSD ( up to 6 Gbps )
Certification CE/FCC
Storage Mode JBOD - Independent Mode 
RAID 0 - Speed Mode
RAID 5 - Safe Mode
Operating System 
Windows 7 or above, OS X 10.10 or above
Cooling System 8 cm Low noise fan
Electrical and 
Requirements * Line voltage: 100-240V AC
* Frequency: 50Hz to 60Hz, single phase
* Maximum continuous power: 150W
* Operating temperature: 32° to 104° F (0° to 40° C)
* Storage temperature: -4° to 116° F (-20° to 47° C)
* Relative humidity: 5% to 95% noncondensing
Size and Weight Height: 166 mm  Width: 124 mm  Depth:  210 mm
Product Code SR4-SB31+

Carton 4 pcs per carton
Package Accessories * SR4-SB31+ x 1
* USB 3.2 (Type-C to Type-C) Cable x 1
* e-SATA Cable x 1
* Power Cord x1
* Accessory Kit 
* Quick Installation Guide x1
Note For DisplayPort (DP 1.1a) and USB Power Delivery (PD) functions,
It needs to be used with a USB Type-C to C cable, 
and the host must support these functions.


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