USB 3.0 / eSATA Dual-Bay Trayless 3.5" SATA III Hard Drive Enclosure with UASP - 2-Bay SATA 6 Gbps Hot-Swap HDD Enclosure
S352BU33RER

Overview
Connect two hot-swappable 3.5" SATA III hard drives to your computer externally through USB 3.0 with UASP or eSATA


Features
Supports SATA III (6 Gbps) and UASP (5 Gbps) for optimal performance Hardware RAID with support for RAID0 / RAID1 / BIG / JBOD Trayless removable HDD slots with drive locks 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) Front-mounted RAID controller USB 3.0 and eSATA cables included

Description
The S352BU33RER 2-Bay RAID enclosure lets you build an external RAID array with two 3.5" SATA hard drives, and connect to your computer through USB 3.0 or eSATA.
For fast performance and efficient data transfers, the enclosure supports SATA III transfer speeds -- up to 6 Gbps when connected through eSATA. The versatile RAID enclosure can also be connected through USB 3.0, with support for UASP, performing up to 70% faster than conventional USB 3.0 when paired with a UASP-enabled host controller. See our UASP testing results below for further details.
The external RAID enclosure features a hardware RAID controller, supporting JBOD, Spanning, RAID 0, and RAID 1 -- to achieve greater drive capacity, or secure data redundancy. The RAID controller is also front mounted for ease of access when changing your RAID mode.
For fast and easy drive installation and removal, the dual drive enclosure features a convenient trayless system that eliminates having to mount and fasten your drives, saving time and hassle.
To ensure compatibility with your computer system, the S352BU33RER 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 S352BU33RER 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.


The StarTech.com Advantage
Versatile connectivity options, through either USB or eSATA Maximize performance, with file transfer speeds up to 6Gbps using eSATA Achieve greater drive capacity or secure data redundancy with a built-in hardware RAID controller

Applications
Build an external RAID 1 array for data redundancy, to protect against drive failure when working with important data Externally work with very large files securely in video editing or photography applications Quickly transfer large data files from your computer to a secure external RAID enclosure

Specifications
Drive ConnectorsSATA Data & Power Combo (7+15 pin) Receptacle Host ConnectorseSATA (7 pin, Data) Female ''USB Type-B (9 pin) USB 3.0 Female Humidity20%RH~80%RH Operating Temperature5°C to 35°C (41°F to 95°F) Storage Temperature-20°C to 50°C (-4°F to 122°F) Bus TypeUSB 3.0 Chipset IDJMicron - JMS562 Compatible Drive TypesSATA Drive InstallationRemovable Drive Size3.5in Fan Bearing TypeSleeve Bearing Fan(s)Yes Fans70 mm Front Door Key LockYes InterfaceUSB 3.0 & eSATA Number of Drives2 Number of internal 3.5 inch bays2 LED IndicatorsHDD 1 Activity ''HDD 2 Activity ''RAID LED Package Height18.7 cm [7.4 in] Package Length30.1 cm [11.9 in] Package Width20.8 cm [8.2 in] Shipping (Package) Weight2.9 kg [6.3 lb] 4Kn SupportNo Air Flow Rate12.72 CFM Hot Swap CapabilityYes Max Drive CapacityCurrently tested with up to 4TB 7200 RPM 3.5" hard drives per bay (8TB total) and 2TB 5900 RPM 2.5" hard drives (2TB total) Maximum Data Transfer Rate6 Gbps Noise Level26.24 dBa Port MultiplierYes RAIDYes Supported RAID ModesBIG (Spanning or Concatenation) ''JBOD - (Just a Bunch of Disks) ''RAID 0 (Striped Disks) ''RAID 1 (Mirrored Disks) Type and RateSATA III (6 Gbps) ''USB 3.0 - 5 Gbit/s UASP SupportYes Product Height11.8 cm [4.6 in] Product Length21.5 cm [8.5 in] Product Width13 cm [5.1 in] Weight of Product1.8 kg [4.1 lb] Input Voltage100 - 240 AC Output Current3 A Output Voltage12V DC Power Consumption (In Watts)36 Power SourceAC Adapter Included Description CDW 75 - 1st LineStarTech.com Dual Bay USB 3.0/eSATA Hard Drive Enclosure 3.5" - UASP OS CompatibilityOS independent; No software or drivers required Included in PackageDrive Bay Keys ''eSATA Cable ''Instruction manual ''Universal Power Adapter (NA/UK/EU) ''USB 3.0 Cable ''USB 3.0/eSATA Dual 3.5" SATA HDD Trayless Enclosure