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Endurastar J4K320

80GB, 100GB, 200GB, 250GB & 320GB
2.5-inch Hard Disk Drive

  • Extreme Environments – Extra wide operating temperature range
  • Built for the Road – Ideal for automotive applications
  • High Capacity Up to 320GB

Product Tab Content

Overview

HGST delivers an industry-leading 320GB capacity in its latest Endurastar line of 2.5-inch hard drives designed especially for extreme environments. The Endurstar J4K320 models provide up to three times the capacity of their predecessors and are built to operate at altitudes of up to 5500 meters. The Endurastar J4K320 is designed for the most severe conditions, with an operating temperature range of -30ºC to +85ºC.

Specifications
Model # / Part #
  • HEJ423232H9E300
  • HEJ423225H9E300
  • HEJ423220H9E300
  • HEJ423210H9E300
  • HEJ423280H9E300
Interface SATA 1.5Gb/s
Capacity (GB) 320 / 250 / 200 / 100 / 80
Sector size (variable, Bytes/sector) 512e
Recording zones 31
Data Heads (physical) 2
Data Disks 1
Max Areal Density (Gbits/sq. in.) 425

Performance

Data Buffer (MB) 8
Rotational Speed (RPM) 4260
Latency Average (ms) 7.04
Media transfer rate (Mbits/sec, max) 750
Interface transfer rate (MB/sec, max) 150
Seek Time (read, ms, typical) 13

Reliability

Error Rate (non-recoverable, bits read) < 1 per 10^13 bits transferred
Load/Unload Cycles 600,000

Acoustics

Idle (Bels) 2.4
Operational (Bels, typical) 3.0

Power

Requirement +5 VDC (+/-5%)
Startup (W, peak, max) 6.5
Read/Write (W, avg) 2.15
Low power idle (W, avg) 0.8
Standby (W, avg) 0.2
Sleep (W) 0.14

Physical size

Z-Height (mm) 9.5
Dimensions (width x depth, mm) 69.85 x 100.2
Weight (g, max) 97

Environmental (operating)

Ambient temperature -30° to 85° C
Shock (half-sine wave) 300G (2ms)
Altitude (m) -300 to 5,500
Vibration (5 to 500 Hz) Up to 3G (10-500Hz)

Environmental (non-operating)

Ambient temperature -40° to 95° C
Shock (half-sine wave) 800G (1ms)
Altitude (m) -300 to 15,000
Vibration (5 to 500 Hz) Up to 5G (10-500Hz)
Quick Facts

Highlights

  • Industry-leading 320GB capacity optimized for automotive applications
  • High operating altitude range of up to 5500 meters
  • Wide operating temperature range from -30ºC to +85ºC
  • 6th generation product, based on proven technology
  • SATA interface

Applications / Environments

  • Automotive
  • GPS navigation systems
  • Surveillance applications
  • Industrial applications
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