Hitachi J4K50 - Manual

www.hitachiGST.com
DATA SHEET
Features and Benefi ts
Feature / Function Benefi ts
Capacity 50GB maximum capacity * 12,500 4-minute MP3 songs, or
40GB and 30GB also available * 17 movies
* 50 interactive games
Acoustics Fluid Dynamic Bearing (FDB) motors Quiet operation
Reliability -30° C to +85° C operating temperature Performs well in extreme temperature environments
-300m to +5,000m altitude on J4K50
High-endurance FDB motor Supports 24x7 applications
Shock sensor technology Cushions the drive in poor shock or vibration conditions
Thermal Fly-height Control (TFC) Improved soft error rate and performance
*Actual storage may vary depending on the compression rate applied.
Built like a tank
Hitachi is fi rst to deliver a 50GB per platter Endurastar hard drive for use in extreme environ-
ments. The Endurastar J4K50 and N4K50 are offered in capacities of 30 to 50GB. Along
with the increased capacity, comes a wider temperature range and improved altitude range.
Endurastar J4K50 is designed to operate in the most severe conditions, at temperatures of
-30°C to +85°C and altitudes of -300 to +5000 meters.Endurastar N4K50 offers a temperature
range of -16°C to +70°C at altitudes of -300 to 3000 meters. The new Endurastar models con-
tinue to leverage shock sensor technology for enhanced reliability and the proven technology
of Hitachi HDDs for notebook PCs to deliver quiet acoustics and excellent performance.
Hitachi Endurastar drives are designed to guard and deliver your data under the harshest
environmental conditions.
Made for the road
Hitachi Endurastar hard drives deliver the one-two punch of operating at the highest
altitude and the most extreme temperatures. These drives are designed to meet the
rigors of the automotive environment, including traditional navigation, telematics, in-car
entertainment and vehicle relational management. This time-proven design supports
around-the-clock applications in industrial environments.
The implementation of TFC, which enables direct control of the read/write element using heat,
provides more consistent spacing between the read/write element and the media, thereby
improving robustness and performance. These new Endurastar models are preferred for
applications in the most radical environments ranging from desert heat to Antartic chill.
Endurastar ™ J4K50 and N4K50
2.5-INCH HARD DISK DRIVES
Highlights
Highest capacity Automotive HDD at 50GB;
67% more than prior model
Expanded operating temperature range
from -30° C to +85° C
Highest operating altitude range of up
to 5000 meters
4th generation product, based on
proven technology
Applications
Automotive
GPS navigation systems
Applications running in hot and
humid climates
Industrial applications
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50, 40 and 30GB | 4200 RPM | ATA-6
Industrial strength drives built for extreme environments