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4TB RAID 2x4TB External eSATA USB Hard Disk Drive [K4]

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Price:
£289.00 (inc VAT) £240.83 (exc VAT)
SKU:
K4
Brand:
Startech
Availability:
Usually ships within 24 hours
Shipping:
Calculated at checkout
Current Stock:
5
Quantity:

Product Description

Features

  • RAID 1 Mirroring (for data protection)

  • RAID 0 Striping (for performance)

  • Ultra fast eSATA connection

  • Compact unit, solid Aluminium body

  • 50mm Cooling Fan with on/off switch

  • Fast Seagate LP Green Series Disks

  • Full 2 Year Warranty 

Description

This great value external dual-disk RAID drive is great for those needing performance and data safety.  Using the disk in its RAID 1 Mirror configuration will give you 2TB of capacity, with your data automatically being written to both disks at the same time.  If a disk failed, then your data would be safely held, and can still be accessed, on the other disk drive.

Other dual disk configurations are also possible by changing switches on the inside of the enclosure. Please note that your data is lost when you switch between different RAID modes, so it must be set before you start adding data.

This product is aimed at PC users with eSATA or USB 2.0 ports.  You will get significantly faster performance using eSATA.  If your PC motherboard has SATA disk connectors, but not external eSATA ports then we can supply a PCI adaptor plate with an eSATA port that connects through to a motherboard SATA connector.

See our performance graphs below to compare the speed of the unit in different configurations.

Contents

  • Startech SAT3520U2ER RAID 0/1 eSATA & USB2 Dual Hard Disk Enclosure with
  • 4TB (4000GB) Total Disk Capacity
  • 2 x Seagate LP Green 2TB SATA-III Disks
  • Disks are fast 5900rpm 64MB Cache
  • Aluminium body
  • 50mm cooling fan, with on/off switch
  • eSATA to eSATA Data Cable (Approx 1m)
  • USB 2.0 Data Cable (Approx 1.8m)
  • External Power Adaptor (100-240V)
  • Power lead with UK plug

Specifications 

Disk Drive Specifications

2 Identical Disk Drives are included. 4TB (4000GB) Total Capacity

Seagate Green Series, 2TB SATA-II, 5900rpm with 64MB Cache.

  • ST2000DL003 Part Number
  • Meets and exceeds eco-green customers requirements
  • Sustained data transfer rates up to 144MB/s
  • Excellent power savings without sacrificing drive performance
  • Utility-free Advanced Format 4K Hard Disk Drive
Disk Enclosure Specifications

Model no.:  Startech SAT3520U2ER

Specification:  3,5" 2x S-ATA to eSATA and USB 2.0
 
Connectors: 

  • Internal: 2x 7 pin S-ATA
  • External: 1x USB 2.0 connector
  • External: 1 x eSATA connector

Operating system:  suitable for Windows XP & Vista, Windows 7,  Mac OS*

       *eSATA is not supported on all Macs 
 
Material/ Colour:  solid silver aluminium body / black plastic ends
Accessories: 

  • USB 2.0 cable
  • eSATA cable 
  • High Quality external transformer power supply (100-240V)
  • UK or Euro Power Lead  
    {We ship this to mainland Europe with a Euro power lead}

Dimensions 190 x 130 x 75 mm

RAID MODES:

Non-RAID (JBOD): The drives will show up as two independent drives.  When using eSATA in this mode only one disk is seen unless your PC has Port Multiplier (PM) Support in the SATA controller.

Big Disk Spanning: The two drives show up as one large single drive. Spanning is an array (not RAID) that is written sequentially across the two drives. By itself, it does not provide any performance or redundancy benefits.

RAID 0 - Striping: Used where speed is the primary objective, RAID Level 0 (also called "striping") is not redundant, and therefore does not technically conform to the definition of a RAID. This form of array splits each piece of data across both of the drives in segments; since data is written without any form of parity data-checking, it allows for the fastest data transfer of all other RAID levels. However, if one drive becomes damaged, the whole array can become corrupted.

RAID 1 - Mirroring:  A RAID 1 creates an exact copy (or mirror) of a set of data on the second drive. This is useful when reliability and backup are more important than data capacity. The available capacity to the user will only be as large as a single drive but when one of the hard drives fails, it can be replaced and the data rebuilt automatically.

The enclosure has an LED indication at the front to show the status of the hard drives. When a drive fails, the corresponding LED will turn red.

Performance

 

Windows 7 PC, P4 3.2Ghz, eSATA connection

 

Raid 0 Striped

 

 


Warranty Information

2 Year - Return to Base.

The product is returned to us at your expense, and replaced and returned to you at our expense.

Return postage cost is not included for non-UK sales.

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