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Hitachi Ships 320GB Travelstar Hard Drives

Hitachi today announced volume shipment of new Travelstar 5K320 5,400 RPM notebook hard drives with a maximum available capacity of 320GB. The new drives feature optional Bulk Data Encryption (BDE) for users requiring increased data security and enhanced availability models designed for use in 24x7 environments.

The Travelstar 5K320 elevates the standard for hard drive reliability with design enhancements that include altitude-sensing Thermal Fly-height Control (TFC), an improved actuator latch and fourth generation perpendicular magnetic recording (PMR) head technology. The drives also include TrueTrack technology, which improves tracking accuracy in high shock or vibration environments. These features combine to deliver an industry-leading 400Gs of operating shock protection.

The Travelstar 5K320 drives consume 1.8W of power when reading and writing and their .55W low power idle means longer battery life for more "unplugged" notebook time and a longer drive life expectancy.

Hitachi will also offer an enhanced-availability (EA) version of the drive that is designed for applications requiring 24x7 operation in lower transaction environments, such as blade servers, network routers, point-of-sale terminals and video surveillance systems.


  • 320/250/160/120/80 GB
  • 9.5 mm in height
  • 5400 RPM
  • 250 billion bits per square inch maximum areal density
  • 2/2/1/1/1glass disk platter (s)
  • 4/3/2/2/1 TMR recording head(s)
  • 1000 G/1ms non-operating shock
  • 400 G/2ms operating shock
  • 5.5 ms average latency
  • 12 ms average read time
  • 0.8W active idle
  • 0.55W low-power idle
  • Serial ATA 3.0Gb/s, 1.5Gb/s encrypted
  • 102//95 grams in weight
  • 2.4 Bels typical idle acoustics
  • 2.6 Bels typical operational acoustics

The Travelstar 5K320 is now shipping to customers worldwide. The enhanced-availability version of the drive is expected to ship in the second quarter of 2008.

Source: Hitachi

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