DESCRIPTION
Travelstar™ 7K320 is the industry’s only fourth-generation 7200 RPM 2.5-inch hard drive with capacities ranging from 80GB to 320GB, equivalent to Hitachi 5400 RPM products. The 160GB per platter one- and two-disk models deliver 60% higher capacity and 12% better application performance than its predecessor. Hitachi provides best-of-breed power and operating shock in Travelstar 7K320 by matching its 5400 RPM models. Designed to support the high-performance needs of multi-tasking commercial users and consumers on-the-go, Travelstar 7K320 offers speed without sacrificing battery life, capacity or audio quality. Hitachi offers optional hard-drive-level encryption for users looking for increased data security and models with enhanced availability to deliver high-capacity storage for non-stop environments.

Hitachi quality and service

Hitachi Travelstar mobile hard disk drives are designed to the highest quality standards and contain field-proven components. Hitachi provides worldwide technical support and integration services to enable global customers to bring their products to market quickly.

Highlights

Proven fourth-generation technology
Up to 320GB¹ of capacity
Lowest power consumption - 22% improvement over 7K200
Capacity and power parity with 5400 RPM models
Serial ATA 3Gb/s
Applications

Notebook Computers
Gaming devices
Compact desktop systems
Small form factor video devices



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Travelstar 7K320 Specifications

Model(s) HTS723232L9A360
Configuration
Interface SATA 3Gb/s
Capacity (GB)¹ 320
Sector size (bytes) 512
Recording zones 24
Data heads (physical) 4
Data disks 2
Max. areal density (Gbits/sq. inch) 252
Performance
Data buffer (MB)² 16
Rotational speed (RPM) 7200
Latency average (ms) 4.2
Media transfer rate (Mbits/sec, max) 1136
Interface Transfer Rate (MB/sec, max) 300
Seek time - Average (typical)ms (read)³ 12
Seek Time - Track to track (typical) ms (read) 1
Seek Time - Full stroke (typical) ms (read) 20
Reliability
Load/unload cycles 600,000
Warranty 3 years
Power
Requirement +5 VDC (±5%)
Dissipation (typical) - Startup (peak, max.) 5.5W
Dissipation (typical) - Seek (average) 2.2W
Dissipation (typical) - Read / Write (average) 1.8W
Dissipation (typical) - Performance idle (average) 1.7W
Dissipation (typical) - Active idle (average) 1.0W
Dissipation (typical) - Low power idle (average) 0.8W
Dissipation (typical) - Standby (average) 0.2W
Dissipation (typical) - Sleep 0.1W
Acoustics (A-weighted sound power)
Idle (typica, Belsl) 2.5
Seel (typical, Bels) 2.8
Physical
z-height (mm) 9.5
Dimensions (width x depth, mm) 70 x 100
Weight (max, g) 102
Environmental (Operating)
Shock (half-sine wave) 400 G/2ms, 200 G/1ms
Ambient temperature 5 to 55° C
Environmental (Non-operating)
Shock (half-sine wave) 1000 G/1ms
Ambient temperature