
Independent power buttons for each hard drive
The hard drive dock features independent power buttons for each individual drive, ensuring you can operate each hard drive separately. This gives you the freedom to hot-swap one drive while transferring data to another, saving you time.

Broad Operating System Compatibility
To ensure compatibility with your computer system, the SDOCK2U33 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.

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.
![]() SDOCKU313 | ![]() SDOCK2U313 | ![]() SDOCK2U33 | ![]() SDOCK4U33 | ![]() UNIDOCKU33 | ![]() SDOCKU33EF | |
|---|---|---|---|---|---|---|
| Customer Reviews | — | — | — | — | — | — |
| Price | — | — | — | — | — | — no data |
| Number of Bays | 1 | 2 | 2 | 4 | 2 | 1 |
| Bus Type | USB 3.1; SATA 6Gbps | USB 3.1; SATA 6Gbps | USB 3.0; SATA 6Gbps | USB 3.0; SATA 6Gbps | USB 3.0; SATA 6Gbps | USB 3.0; SATA 6Gbps |
| Ports | USB | USB | USB | USB | USB, IDE | USB & eSATA |

Applications
Dock two 2.5 or 3.5 inches SATA III SSDs/HDDs over USB 3.0 with UASP
System builders and I.T. specialists who need quick access to drives for imaging.
Backup data quickly to an external drive for archiving.
Transferring data from one hard drive to another.
Technicians who test or benchmark multiple hard drives.
Backup important data and easily take the drive to an offsite location for safekeeping.
StarTech .com Packaging
Look for StarTech .com Branded Packaging to ensure you are getting a genuine StarTech .com product.
What's in the Box
1 - USB 3.0 to Dual 2.5/3.5in SATA hard drive docking station.
1 - 3 feet (1 meter) USB 3.0 Cable
1 - Universal Power Adapter (NA/EU/UK) or AU in Australia.
1 - Instruction Manual
Features
- Support SATA III (6 Gbps) and UASP for optimal performance
- Independent power buttons for each hard drive
- Compatible with SATA revision I/II/III (1.5/3.0/6.0 Gbps) drives
- Compatible with USB 3.0/2.0/1.1 (5 Gbps / 480 Mbps / 1.5 Mbps)
- Supports both 2.5" and 3.5" form factor hard drives (HDD) and solid state drives (SSD)
- Dual bay, top slot-loading design with drive doors


Independent power buttons for each hard drive
The hard drive dock features independent power buttons for each individual drive, ensuring you can operate each hard drive separately. This gives you the freedom to hot-swap one drive while transferring data to another, saving you time.

Broad Operating System Compatibility
To ensure compatibility with your computer system, the SDOCK2U33 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.

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.
![]() SDOCKU313 | ![]() SDOCK2U313 | ![]() SDOCK2U33 | ![]() SDOCK4U33 | ![]() UNIDOCKU33 | ![]() SDOCKU33EF | |
|---|---|---|---|---|---|---|
| Customer Reviews | — | — | — | — | — | — |
| Price | — | — | — | — | — | — no data |
| Number of Bays | 1 | 2 | 2 | 4 | 2 | 1 |
| Bus Type | USB 3.1; SATA 6Gbps | USB 3.1; SATA 6Gbps | USB 3.0; SATA 6Gbps | USB 3.0; SATA 6Gbps | USB 3.0; SATA 6Gbps | USB 3.0; SATA 6Gbps |
| Ports | USB | USB | USB | USB | USB, IDE | USB & eSATA |

Applications
Dock two 2.5 or 3.5 inches SATA III SSDs/HDDs over USB 3.0 with UASP
System builders and I.T. specialists who need quick access to drives for imaging.
Backup data quickly to an external drive for archiving.
Transferring data from one hard drive to another.
Technicians who test or benchmark multiple hard drives.
Backup important data and easily take the drive to an offsite location for safekeeping.
StarTech .com Packaging
Look for StarTech .com Branded Packaging to ensure you are getting a genuine StarTech .com product.
What's in the Box
1 - USB 3.0 to Dual 2.5/3.5in SATA hard drive docking station.
1 - 3 feet (1 meter) USB 3.0 Cable
1 - Universal Power Adapter (NA/EU/UK) or AU in Australia.
1 - Instruction Manual
Features
- Support SATA III (6 Gbps) and UASP for optimal performance
- Independent power buttons for each hard drive
- Compatible with SATA revision I/II/III (1.5/3.0/6.0 Gbps) drives
- Compatible with USB 3.0/2.0/1.1 (5 Gbps / 480 Mbps / 1.5 Mbps)
- Supports both 2.5" and 3.5" form factor hard drives (HDD) and solid state drives (SSD)
- Dual bay, top slot-loading design with drive doors



















































