StarTech.com

USB 3.0/eSATA Dual 3.5” SATA III Hard Drive External RAID Enclosure w/ UASP and Fan – Black

Create an external dual 3.5in HDD SATA RAID array, connected through either USB 3.0 with UASP or eSATA

Product ID: S3520BU33ER

  • UASP Support (Attached SCSI Protocol Specification Revision 1.0)
  • eSATA or USB Host Connection
  • Compatible with SATA revision I/II/III (1.5/3.0/6.0 Gbps)
View More
  • Hardware RAID
  • Plug-and-Play Compatible
  • Dual Drive Bay
  • Built-in Fan
128,99 € EUR exc VAT
158,66 € EUR inc VAT
65+ In stock
Where To Buy

Volume Order?
Request a quote

Reseller Pricing:
Create an Account

Overview

The S3520BU33ER 2-Bay RAID Enclosure offers a high-performance external storage solution, enabling you to build a secure RAID array with two 3.5” SATA hard drives, with the option to connect it to your computer through either an available USB 3.0 or eSATA port.

For fast data transfers and efficient performance from your SATA III drives, the RAID enclosure supports full SATA III transfer speeds (up to 6 Gbps), as well as full USB 3.0 transfer speeds (up to 5Gbps). When connected through USB, the enclosure supports UASP, which offers performance up to 70% faster than conventional USB 3.0 when paired with a UASP-enabled host controller (see our performance below).

With support for JBOD, Spanning, RAID 0, and RAID 1,the enclosure offers several options that enable you to customize your drive arrangement based on your storage requirements. 

To maximize both durability and reliability, the external RAID enclosure features high-quality aluminum construction with a built-in fan that helps improve ventilation and maintain a better operating environment for your drives.

The HDD enclosure offers a versatile solution for increasing the storage/backup capabilities of your computer, with support for large capacity hard drives (tested up to 4TB). 

To ensure compatibility with your computer system, the S3520BU33ER 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™.

It 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.

UASP Speed Diagram

At the same peak in testing UASP also shows an 80% reduction in required processor resources.

UASP Speed Diagram

Testing results were obtained using an Intel® Ivy Bridge system, a UASP enabled StarTech.com Enclosure, and a SATA III solid state drive.

The StarTech.com Advantage

  • Versatile connectivity options, through either USB or eSATA
  • Time-saving file transfers, up to 70% faster than traditional USB 3.0 when used with a UASP-supported host
  • Achieve greater drive capacity or secure data redundancy with multiple RAID modes
  • Maximize performance, with file transfer speeds up to 6Gbps using SATA III

Applications

Business applications that require external RAID storage for data redundancy

Video editing or photography professional/enthusiasts working with very large file sizes

Transfer large files between computers quickly and securely without a network

Scenarios requiring easy storage transferability between different computer systems and large volume external storage for backups/archiving

Technical Specifications

Warranty Information
Warranty 2 Years
Hardware
Chipset ID JMicron - JMS562
Compatible Drive Types SATA
Drive Installation Fixed
Drive Size 3.5in
Fan Bearing Type Ball Bearing
Fan(s) Yes
Fans 1 - 40 mm
Interface eSATA
USB 3.0
Number of Drives 2
Number of internal 3.5 inch bays 2
Performance
Hot Swap Capability Yes
Max Drive Capacity Currently tested with up to 4TB 7200 RPM hard drive
MTBF 30,000 hours
Port Multiplier Yes
RAID Yes
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)
UASP Support Yes
Connector(s)
Drive Connectors SATA Data & Power Combo (7+15 pin) Receptacle
Host Connectors eSATA (7 pin, Data) Female
USB Type-B (9 pin) USB 3.0 Female
Software
Microsoft WHQL Certified Yes
OS Compatibility OS independent; No software or drivers required
Indicators
LED Indicators 1 - Enclosure Power LED
1 - Drive 1 Activity LED
1 - Drive 2 Activity LED
Power
Center Tip Polarity Positive
Input Voltage 100 ~ 240 AC
Output Current 3 A
Output Voltage 12 DC
Plug Type M
Power Consumption (In Watts) 36
Power Source AC Adapter Included
Environmental
Humidity 20%RH ~ 80%RH
Operating Temperature 5°C to 35°C (41°F to 95°F)
Storage Temperature -20°C to 50°C (-4°F to 122°F)
Physical Characteristics
Color Black
Enclosure Type Aluminum and Plastic
Product Height 85 mm [3.3 in]
Product Length 176 mm [6.9 in]
Product Weight 620 g [21.9 oz]
Product Width 113 mm [4.4 in]
Packaging Information
Shipping (Package) Weight 1.4 kg [3 lb]
What's in the Box
Included in Package 1 - USB 3.0/eSATA HDD RAID enclosure
1 - eSATA cable
1 - USB 3.0 cable
1 - universal power adapter (NA,EU,UK)
1 - rubber foot set
1 - instruction manual
Supports any operating system.
No additional drivers or software required.

Certifications

Related Products

USB 3.0 / eSATA 4-Bay 3.5in SATA III Hard Drive Enclosure w/ built-in HDD Fan & UASP – SATA 6Gbps
S3540BU33E
USB 3.0 / eSATA 4-Bay 3.5in SATA III Hard Drive Enclosure w/ built-in HDD Fan & UASP – SATA 6Gbps

Add four 3.5" SATA III hard drives to your computer externally through USB 3.0 with UASP or eSATA

257,99 € exc VAT
317,33 € inc VAT
10+ In stock
4-Bay 1U Rackmount Enclosure for 3.5in SATA / SAS Drives
SAT35401U
4-Bay 1U Rackmount Enclosure for 3.5in SATA / SAS Drives

Turn four 3.5” SATA/SAS drives into a 1U rack-mountable storage solution with external Mini SAS connectivity

471,99 € exc VAT
580,55 € inc VAT
5+ In stock

Accessories