The bridge for Thunderbolt 2 and miniSAS interfaces



Your best choice for Thunderbolt 2 expansion


Thru its two miniSAS ports, SA2TB2 could let your PC or Mac connect to 8 more external SAS or SATA storage enclosures thru its two Thunderbolt 2 Host Interface Port.

High efficiency Hardware RAID Docking Station for storage products


SA2TB2 is designed with the high efficiency hardware RAID features for RAID 0 /1 /5 /6 /10 /50 /60/JBOD modes. You could use an easy user interface tool of MSU, the Marvell GUI Utility, for setting up any of the RAID mode to fit into all your data protection or high data transfer requirements.   

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 SA2TB2 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" and "MIGRATE" 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.


MSU Utility also gives you a very smart feature, called "MIGRATE".  "MIGRATE" lets you easily change your RAID setting. You no need reset your new RAID storage, and just only use "MIGRATE" function of MSU Utility, to migrate easily your RAID configure.



Adjust performance according to application flexibility


SA2TB2 use Marvell software, to adjust the hard drive and SA2TB2 transfer data via the "stripe size" function, so that SA2TB2 based on your use "stripe size" to achieve the most stable and fastest performance.

The intimate function adjustment and fault signal display design


The Power LED and system Failure Indications at Front Bezel tell you if your storage product is working properly. Also, SA2TB2 could let you adjust a lower fan speed thru a Fan Speed Control Switch at Front Bezel as well to meet a less power consumption and lower noise green environment!  By the way, in order to protect your data from damaging to HDD by heat, it has a smart in-chassis thermal sensor design to turn on a full speed at the Fan while reaching to 50ºC.  And the smart sensor returns the Fan Speed Control back to the Fan Speed Control Switch while the in-chassis temperature drops down to 45ºC.


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 front panel.

The SGPIO Signal for you to design your own system monitoring software - (Optional)


SA2TB2 provides SGPIO detection function, through the standard SGPIO signal, monitoring the expansion storage devices, allowing users to know whether the expansion storage equipment failure to ensure that SA2TB2 system can work properly.

The solid iron chassis and the two powerful Silent Fans


SA2TB2's solid chassis is made by a 1.2 mm thickness iron plate.  And its iron housing and the two 4 cm FANs (with safe FAN GUARDs) really help an efficient heat dissipation for your long time use.

A good Docking to connect to your storage products


SA2TB2 helps connecting your Mac or PC to any miniSAS storage product.  And once you buy and upgrade your new Mac or PC (with TB2 interface), you could still use all your existing miniSAS storage products from having this SA2TB2 docking product.


SA2TB2 applicable product list  >> ST8-U6

More SA2TB3 product information  >>>>

A solid and durable structure with a stylish chassis design


SA2TB2 is having a stylish chassis design.  You could put an iMac or a monitor while using your Mac or PC on top of its solid and durable mechanism structure for space saving purpose.  And also, its 1.2 mm icon sheet metal chassis could also help an excellent heat dissipation to keep a cool working environment for all its electronic parts.

Product View


Model No SAT2B2 Docking 
Thunderbolt 2 Port x 2 ( up to 20 Gbps )  >> For  host 
SFF-8644 miniSAS  Port x 2  >>  For Device
Compatible Drive 8 x 3.5" / 2.5" SAS/SATA HDD/SSD ( up to 6 Gbps ) /
Support large volume up to 10TB
Storage Mode RAID 0, 1, 5, 6, 10, 50, 60 and JBOD
Certifications CE & FCC
Operating System 
Windows 7 or above, OS X 10.10 or above
Cooling System 4cm Low noise fan x 2
Electrical and 
* Line voltage: 100-240V AC
* Frequency: 50Hz to 60Hz, single phase
* Maximum continuous power: 60W
* Operating temperature: 50° to 95° F (10° to 35° C)
* Storage temperature: -4° to 113° F (-20° to 45° C)
* Relative humidity: 5% to 95% noncondensing
Size and Weight Height: 44 mm   Width: 427 mm    Depth: 200 mm    Weight: 2.24 kg
Product Code EAN: 4711132866735
UPC: 884826504160
Carton 2 pcs per carton
Package Accessories * SA2TB2 x 1
* Thunderbolt Cable x1
* Power Cord x1
* Accessory Kit 
* S.G.P.I.O module (Optional)
* CD x1
* Quick Installation Guide x1


SA2TB2 Download

Mac Driver
Mac MSU Utility
Win Driver
Windows MSU Utility

SA2TB2 Question & Answer