320GB 2.5" Hitachi Travelstar 7K320 7200RPM SA... (0A57547) at OWC

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320GB 2.5" Hitachi Travelstar 7K320 7200RPM SATA Notebook Drive with 16MB Cache - New, 3 Year Warranty (HIT0A57547) $127.99 after $40 Travelstar 7K320 320GB rebate available from Hitachi for purchases made between 08/27/2008 and 09/10/2008, click to download rebate form, and view terms and details	Same Day	$167.99

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Hitachi Travelstar™ 7K320
High-performance laptop storage

High-performance mobile storage without sacrificing capacity or power

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

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	-40 to 65° C
One GB is equal to one billion bytes when referring to hard drive capacity. Accessible capacity may be less. Upper 736KB out of 8MB used for firmware Excludes command overhead Specific application environments such as temperature and duty cycle will affect the overall reliability rates.