8-Bay 2.5”/3.5” SATA III HDD/SSD Hardware RAID Storage 

2 Thunderbolt™ 3 ports, 1 Mini DisplayPort, Hot-Swappable Drive




1.Hardware RAID that works seamlessly between Macs and PCs.

2.The GT8670-TB3 is equipped with four configuration modes to suit every need.

●RAID 0/1/10/JBOD.

3.Thunderbolt™ 3 (USB-C) brings you 40Gbps extreme high data transfer speed.

4.GT8670-TB3 to support 8 x 3.5" / 2.5" SATA HDD/SSD.

5.MCU function provides automatic and manual adjustment of FAN.

6.Thunderbolt™ 3 The USB-C that does it all.

●Support 15W ( 5V/3A ) Power Delivery.

●Mini DisplayPort connect DVI、HDMI、VGA display devices.


A stand-alone hardware RAID could let your Mac & PC work more efficiently

GT8670-TB3 is built-in the easy-to-use hardware RAID, and it won’t hurt system performance during its REBUILDING WORK completely! It would meet your requirement who always requests for both of system performance and the high memory capacity. GT8670-TB3 with RAID 1 or even RAID 10 feature would be your best cost-effective storage solution at both of data protection and the system performance.


It's really easy for you to set up your new buy GT8670-TB3 in your office or even at home. Thru Marvell's MSU Tool, you could set up its hardware RAID thru a graphic user-friendly interface.  You could choose one of the following different RAID modes, RAID 0, 1, 10 and JBOD, to fit your needs for the available large storage space together with its data protection feature.

To support monitoring, buzzer, email notification, and S.M.A.R.T. features

The Marvel MSU Utility could help monitoring the RAID status while your GT8670-TB3 is working, and alert you thru beeping sound from a loud buzzer, and sending you a warning message thru e-mail system.  MSU also records all the product status in detailed and helps testing your HDD quality thru its built-in S.M.A.R.T. testing software for you.


To support "SPARE" features


Marvell MSU Utility provides "SPARE" feature which lets you set up a spare HDD/SSD as a redundant storage.  Once any of your HDDs becomes defective, "SPARE" helps protecting your data thru transferring your data from that defect to the free HDD/SSD.


Adjust performance according to application flexibility

GT8670-TB3 use Marvell software, to adjust the hard drive and GT8670-TB3 transfer data via the "stripe size" function, so that GT8670-TB3 based on your use "stripe size" to achieve the most stable and fastest performance.

Thunderbolt™ 3 brings you an extreme high data transfer speed


GT8670-TB3  supports Thunderbolt™ 3 interface for an extreme high data transfer speed.  And both of the two TB3 ports are equipped with a up to 40Gb/s data transfer rate which is 4 times faster than USB 3.1 Gen 2 ,2 times faster than Thunderbolt™ 2.  


You could definitely use it to play your 4K high-resolution films with no any lagging hassle.  Thunderbolt™ 3 interface not only brings you this high data transfer rate advantage, it also let you chain maximum up to 6 GT8670-TB3 products (or other compatible storage products).


RAID 0 mode to help an efficiency


GT8670-TB3 provides RAID 0 mode, and pluses its Thunderbolt™ 3 interface protocol, it really gives you an excellent data transfer performance up to 1500MB/s.  It helps your heavy duty video or photos editing works in your Post-production studio.

RAID 10 functionality with data security and transmission performance


The GT8670-TB3 provides two RAID 10 functions. Users can see the storage capacity of the two entities on the operating system. With the data security of RAID 1 and the accelerated transmission performance of RAID 0, users can get the perfect combination of data security and transmission performance at the same time.

Thunderbolt™ 3 The USB-C that does it all


All our Thunderbolt™3 products support USB C type connector and you could always use it to charge not only your mobile phone but notebook thru its 15W 5V/3A PD (Power Delivery) feature.


All our Thunderbolt™ 3 products also support a Mini DisplayPort which gives you a very easy way to connect to your display device.  This Mini DisplayPort is fully complaint to all the existing DVI, HDMI, and VGA display devices thru an adapter.



GT8670-TB3 to support both of 3.5" HDD and 2.5" HDD & SSD products


To bundle with eight new easy-to-use Trays, GT8670-TB3 supports any kinds of 3.5" & 2.5" HDDs/SSDs.  And also, GT8670-TB3's aluminum housing help protecting your data from its solid structure design and the excellent heat dissipation.


Since this new easy-to-use Tray is dimensional compliant to all our RAIDON products, you could easily transfer your data among different storage devices.  And also, its key lock design could provide a double protection at your data from any improper Tray extracting. 

The solid aluminum chassis pluses two powerful low noise Fans

GT8670-TB3's solid chassis is made by a thickness aluminum-alloy plate.  And its aluminum housing and the two 8 cm FANs (with safe FAN GUARDs) really help an efficient heat dissipation for your long time use.

To support SGPIO feature (Serial General Purpose Input & Output)


GT8670-TB3 provides the SGPIO (Serial General Purpose Input & Output) features.   The SGPIO feature detects the following system failure symptoms: by different LED signal, user is easily to find out which HDD(s) defect to ensure GT8670-TB3 running smoothly.


MCU feature to provide you in-chassis temperature control

GT8670-TB3 is also designed with the MCU feature which monitors and helps improving its in-chassis system temperature.  While the system temperature rises up to 55 degree-C (131 degree-F), MCU will bump up the fans with full speed; and once system temperature goes down to 50 degree-C (122 degree-F), you could manually adjust fan switch on the rear, MCU would reduce the fan speed down to a half speed for a better green user environment from a less fan noise and lower power consumption.


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.

The built-in power supply unit

GT8670-TB3 uses conform with safety regulation certified 300W power supply unit which provides a stable and high efficient power output and definitely satisfies the big power consumption from all 8 HDDs.



Suitable for PC and Mac user


With Thunderbolt™ host interfaces, GT8670 can be used both in PC and MAC environment flexible.


More GR4670-TB3 Product information  >>>> 

More GR8680-TB3 Product information  >>>> 

Thunderbolt™ 3 With GT8670-TB3 Stylish and Rugged

The GT8670-TB3 has a sleek exterior design that will never go out of style when placed next to your Mac. It’s also built tough with thickness aluminum to shield the enclosed drives durably and to dissipate the heat created by the drives for the drives to work comfortably.

Windows systems can also extend Thunderbolt™ storage devices

For Windows operating system environment, GT8670 is also the best tool for your external storage, you need Thunderbolt™ 3 card via GT8670 to set the different raid mode, and to expand high-speed external storage devices for your Server. 


Your Server could connect to one GT8670-TB3 and chain to at most 6 more GT8670-TB3 products for a huge memory storage capacity thru its high performance Thunderbolt™ 3 

Help you to achieve various photos editing 

Since GT8670-TB3 provides two Thunderbolt™ 3 ports, just use your MacBook Pro, you could set up your own full function photo studio right away.  You could then save tons of RAW images.  And of course, you could edit and process the images quickly once you set up your GT8670-TB3 with RAID 0/10 feature.  

GT8670-TB3 Product View

GT8670-TB3 Specification

Model No GT8670-TB3 
Interfaces Thunderbolt™ 3 Port x 2( up to 40 Gbps ), Support 15W (5V/3A) Power Delivery.
Mini DisplayPort x 1
Compatible Drive 8 x 3.5”/2.5" SATA III HDD/SSD ( up to 6 Gbps )
Certification CE/FCC
Storage Mode RAID 0, 1, 10 and JBOD
(Two RAID group, Support 4 HDDs maximum per RAID Group)
Operating System 
Windows 7 (64-bit), Windows 10 (64-bit) and later, macOS 10.13 and later*
For PC, Windows 10 (64-bit) and later is recommended
Cooling System 8 cm Low noise fan x2
Electrical and
* Line voltage: 100-240V AC
* Frequency: 50Hz to 60Hz, single phase
* Maximum continuous power: 300W
* 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: 282 mm   Width: 140 mm    Depth: 296 mm   
Product Code GT8670-TB3
Carton 2 pcs per carton
Package Accessories * GT8670-TB3 x 1  (with removable drive tray enclosed x 8)
* Thunderbolt™ Cable x 1
* AC Power Cable x 1
* Accessory kit
* User Manual x 1
Remarks * Please be advised the Marvell Storage Utility (MSU) has not been updated to
support macOS Catalina yet. Please remain on macOS Mojave until an updated is 


GT8670-TB3 Download

MSU Utility,MSU Utility Manual & Driver Download & note

GT8670-TB3 Question & Answer