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Endurastar J4K30 and N4K30 hard disk drives specifications

Product Endurastar J4K30 models Endurastar N4K30 models
Model names
HEJ423030F9AT00 HEN423030F9AT00
 
HEJ423020F9AT00 HEN423020F9AT00
     
Interface ATA-5 (IDE) ATA-5 (IDE)
   
Configuration    
Capacity (GB)1 30 / 20
Sector size (bytes) 512
Recording zones 16
Data heads 2
Disks 1
Max. areal density (Gbits/sq. inch) 56.6
     
Performance    
Data buffer (MB)2 8
Rotational speed (RPM) 4172
Latency (average ms) 7.19
Max. media transfer rate (Mbits/sec) 36.1
Max. interface transfer rate (MB/sec) 100MB/sec Ultra DMA mode-5
16.6MB/sec PIO mode-4
     
Seek time (ms)    
Average (typical) 13
Maximum (typical) 24
Minimum (typical) 3
     
Reliability    
Error rate (non-recoverable) < 1 per 1013 bits transferred
Load/unload cycle 300,000
     
Power (@ 25° C)    
Requirement +5VDC (+-5%)
 Startup current (max. peak) 6.50 W
 Seek (average) 2.40 W
 Read (average) 2.15 W
 Write (average) 2.15 W
 Low power idle (average) 0.60 W
 Standby (average) 0.15 W
 Sleep 0.10 W
     
Physical size    
Height (mm) 9.5
Width (mm) 70
Depth (mm) 100
Weight (g) 107
     
Environmental characteristics
     
Operating    
Ambient temperature -20° to 85° C 0° to 60 ° C
Relative humidity (non-condensing) 5% to 90%
Maximum wet bulb (non-condensing) 40° C
Shock (half sine wave) 250G/2ms
Vibration (sine wave) 1.0 G (22-500Hz)
     
Non-operating    
Ambient temp -40° to 85 ° C
Relative humidity (non-condensing) 5% to 95%
Maximum wet bulb (non-condensing) 40° C
Shock (half sine wave) 800G/1ms
Vibration (sine wave) 5.0G (22-500Hz)
     
Acoustic (A-Weighted Sound Power (Bels))
Idle (typical) 2.4
Operating (typical) 3.0

1 GB equals one billion bytes when referring to hard drive capacity; accessible capacity may be less.

2 Space reserved for firmware.

 





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