The S352BU33HR 2-Bay RAID Enclosure lets you build an external RAID array using two 3.5” SATA hard drives, and add it to your computer through USB 3.0.
For optimal performance from your SATA III drives, the external RAID enclosure supports a UASP-enabled USB 3.0 host connection, which performs up to 70% faster than conventional USB 3.0 when paired with a UASP compatible host controller. (See UASP testing results below for more detail).
The RAID enclosure also lets you connect additional USB 3.0 devices to your computer, through an integrated 2-port USB 3.0 hub conveniently mounted on the front of the enclosure. The easy-to-reach hub also has fast charging capabilities, so you can charge your iPad, smartphone or other mobile devices as quickly as you would through a direct wall outlet connection.
To help maintain safe operating temperatures for your hard drives, the 2-drive enclosure features a built-in cooling fan to ensure proper air circulation and prevent your SATA drives from over-heating.
The enclosure features an integrated hardware RAID controller, which gives you the options you need to set up the array that best suits your storage application, including JBOD, Spanning, RAID 0, and RAID 1.
To ensure compatibility with your computer system, the S352BU33HR supports all of the leading operating systems, including: Microsoft Windows® (8/7/Vista/XP/Server 2008/Server 2003), Apple® OSX (10.9/10.8/10.7/10.6), Linux, and Google Chrome OS™.
The S352BU33HR is backed by a StarTech.com 2-year warranty and free lifetime technical support.
Improved Performance with UASP
UASP is supported in Windows 8, Mac OSX (10.8 or above), and Linux. In testing, UASP performs with a 70% faster read speed and 40% faster write speed over traditional USB 3.0 at peak performance.
At the same peak in testing UASP also shows an 80% reduction in required processor resources.
Testing results were obtained using an Intel® Ivy Bridge system, a UASP-enabled StarTech.com Enclosure, and a SATA III solid state drive.
JMicron - JMS562
ASMedia – ASM1074
Compatible Drive Types
1 - 80 mm
Number of Drives
Number of internal 3.5 inch bays
Hot Swap Capability
Max Drive Capacity
Currently tested with up to 6TB 7200 RPM
Maximum Data Transfer Rate
Supported RAID Modes
BIG (Spanning or Concatenation)
JBOD - (Just a Bunch of Disks)
RAID 0 (Striped Disks)
RAID 1 (Mirrored Disks)
Type and Rate
USB 3.0 - 5 Gbit/s
SATA III (6 Gbps)
1 - USB 3.0 A (Fast-Charge, 9 pin) Female
2 - SATA Data & Power Combo (7+15 pin) Receptacle
1 - USB Type-B (9 pin) USB 3.0 Female
OS independent; No software or drivers required
1 - Power LED
1 - HDD 1 Activity
1 - HDD 2 Activity
1 - RAID LED
100 - 240 AC
Power Consumption (In Watts)
AC Adapter Included
5°C to 35°C (41°F to 95°F)
-20°C to 50°C (-4°F to 122°F)
9.5 cm [3.7 in]
18.2 cm [7.2 in]
11.6 cm [4.5 in]
Weight of Product
741 g [26.2 oz]
17.9 cm [7 in]
25.5 cm [10 in]
13.9 cm [5.5 in]
Shipping (Package) Weight
1.4 kg [3 lb]
What's in the Box
Included in Package
1 - USB 3.0 Hard Drive Enclosure
1 - USB 3.0 Cable
1 - Universal Power Adapter (NA/UK/EU)
1 - Instruction Manual
| Stock code || IB-ST-2U33|
| Brand || StarTech|
| Series || 2-Bay USB3 Desktop Case|
| Model || S352BU33HR|
| Type || Case for 2x 3.5" SATA HDD, JBOD or RAID-0/1 with UASP|
| ROHS || Y|
| Date added || 27/10/2014|
S352BU33HR Spec Information
| Platter size || 3.5"|
| Guarantee || TBC|
| Total Drives || 2|
| RAID || 0:1:JBOD:|
| RAID Levels || 0, 1, BIG (Concatenation), JBOD|
S352BU33HR Spec Connections
|USB3||USB3 type A||External||1|
|SATA||SATA 7-pin Discrete||Internal||2|
| Length (cm) || 18.2|
| Weight (kg) || 1.4kg|
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