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DATA SHEET

Features and Benefi ts

 

Feature / Function 

Bene

fi

 ts

Capacity

 

30GB  maximum capacity 

* 7,500 4-minute MP3 songs, or

 

20GB also available 

* 2.7 hours of DV25 video, or

 

 

* 15 interactive games

Acoustics

 

Fluid Dynamic Bearing (FDB) motors 

Quiet operation

Reliability

 

-20° C to +85° C operating temperature 

Performs well in extreme temperature environments

 (J4K30)

 

High-endurance FDB motor 

Supports 24x7 applications

 

Load/unload technology 

Reduces disk wear and helps protect user data

 

Built-in shock sensor 

Enhances data integrity

*

Actual storage may vary depending on the compression rate applied.

Turn up the heat

Hitachi delivers a 50-percent storage capacity increase in its line of “extreme” hard disk drives. 
The Endurstar

 J4K30 and Endurastar N4K30 are both offered in capacities of up to 30GB, 

and are designed speci

fi

 cally to perform in extreme temperature environments. With an 

operating temperature range as wide as -20°C to +85°C, the new Endurastar models are built 
to perform in the harshest environments—from the desert heat to the Antarctic chill.

Ideal for automotive applications

Endurastar hard drives are the preferred solution for automotive applications or other environ-
ments which require high robustness and wider operating temperatures than standard hard 
drive applications. In fact, the Endurastar J4K30 is already being used in car entertainment and 
navigation applications—and 30GBs of storage means users can store more than 5,000 audio 

fi

 les, four hours of MPEG2 video and enough navigation data to cover the entire planet!

Reliability and performance

The new Endurastar models feature glass media and load/unload technology in addition 
to shock sensor technology which cushions the drive in less than ideal shock or vibration 
conditions. Endurastar drives incorporate 

fl

 uid dynamic bearings (FDB) in the spindle motor, 

allowing the same quiet operations and improved shock characteristics as with PC models, 
but offers even higher reliability for automotive environments and around-the-clock applications 
in industrial environments. These features enable the Endurastar drives to achieve a
non-operating shock tolerance of 800G/1ms and an operating shock tolerance of 250G/2ms.

Endurastar

 J4K30 and N4K30

2.5-INCH HARD DISK DRIVES

Highlights

30GB and 20GB capacity in a 2.5-inch 
form factor
Operating temperature range from
-20° C to +85° C
Built-in shock sensor enhances 
data integrity
Enhanced moisture control system ensures 
corrosion control in extreme environments

Applications

Automotive
GPS navigation systems
Applications running in hot and 
humid climates

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30 and 20

GB | 4200 RPM | 

ATA-5

Extreme hard drives for extreme environments

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