Saturday, July 07, 2012

External Enclosure for a Mobile 2.5" Disk

For working with my tablet computers I need more storage space than the buildin stargae of 32GB or 64 GB. So I decided to use a mobile hard disk of 500 GB or 750 GB or 1 TB. Now I am looking for a suitable external enclose and the disk itself.

My requirements for the external disk enclosure

  • Form: usable for 2.5" disks of 9.5 mm height
  • Size: Super Slim i.e. max. 13 mm high
  • Limitation of disk storage capacity: 1 TB or even better if no limitation at all
  • Controller: SATA-300
  • Data connection to computer: USB 2.0 or better (say: eSATA or USB 3.0)
  • Normal power supply: via USB data connection (5 V, 500 mA = 2.5 Watt)
  • Extra power supply by 5V DC-In

My shortlist

  • Raidsonic MB668U3-1SB http://www.testberichte.de/p/icy-dock-tests/mb668u3-1sb-testbericht.html
  • Raidsonic MB668US
  • Raidsonic MB668U
  • Raidsonic IB-250StU3
  • Raidsonic IB-266StUS-B
  • CnMemory Core 1,6 mm
  • igozz slim 1TB

My elaluation

Raidsonic MB668U3:

13mm, 5V DC-In, unlimited disk capacity, USB 3.0

Raidsonic MB668US-1SB:

Same as above, but USB 2.0 only and capacity limit 750 GB

Raidsonic MB668U:

Same as above, but withaut eSATA

Raidsonic IB 250StU3:

USB 3.0, not limitation for disk capacity, no eSATA, Height: 12mm or 17mm

Raidsonic IB-266StUS-B:

This is the box I am using already for my TV recordings, 500 GB limitation, eSATA, DC-In

CnMemory Core

Abmessung: 122,5 mm x 77,5 mm x 14 mm

igozz slim 1TB


Requirements for the Hard Disk

  • Serial ATA
  • Height 9.5 mm
  • Electrical engergy consumption less than 2.5 Watt

Shortlist for the Hard Disk

Evaluation

WD7500BPKT:Scorpio Black:

  • Kapazität: 750 GB
  • Schnittstelle:Serial ATA-300
  • 7200 rpm
  • Bauhöhe: 9.5 mm
  • 16 MB Cache
  • Leistungsaufnahme: 3.3 Watt

Western Digital Scorpio Blue WD10JPVT (1 TB)

  • Kapazität: 1 TB
  • Schnittstelle Serial ATA-300
  • 5400 rpm
  • Bauhöhe 9.5 mm
  • 8 MB Cache
  • Leistungsaufnahme 2.5 Watt

My Decision

  • Western Digital Scorpio Blue WD10JPVT (1 TB) --> needs 2.5 Watt only
  • Raidsonic MB668U3: --> slim 13 mm, DC-In, no limitation on storage capacity

 

 

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posted by Nicolas at July 07, 2012