320GB Hitachi/IBM Deskstar T7K500 7200RPM SATA... (0A33435) at OWC

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320GB Hitachi/IBM Deskstar T7K500 7200RPM SATA I/II HD with 16MB Data Buffer. New with 3yr Hitachi Warranty. (HIT0A33435)	Same Day	$89.99

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Hitachi Deskstar T7K500
Hard Disk Drives

500GB, 400GB, 320GB and 250GB | 7200 RPM | Serial ATA 3.0Gb/s

The Deskstar T7K500 builds on Hitachi’s award winning tradition with new 160GB per platter areal density technology. Consumer personal computers and mid-range servers demand high capacity and high performance storage to meet consumers digital media needs and growth ATA server application requirements. The Deskstar T7K500 meets these performance requirements and delivers the high capacity for today’s applications.

Highlights

SATA 3.0Gb/s interface with capacities from 250GB up to 500GB
Native Command Queuing for maximum data speeds
Thermal Monitoring and Fly Height Control for high reliability
SMART Command Transport optimized response times
Rotational Speed - 7200 RPM
Average seek time - 8.5 ms
Up to 16MB buffer
RoHS Compliant

Features and Benefits
	Features	Benefits
Performance	High interface transfer rates	Faster system boot-up
	High interface transfer rates	Quicker screen refreshes
	Up to 16MB buffer	Faster data processing
	NCQ (Native Command Queuing)	Faster data processing
Capacity	500GB, 400GB, 320GB and 250GB	Popular capacity points
Reliability	Thermal FlyHeight Control (TFC)	Improves error rate
	Head load/unload	Protects disk during non-operation
	Head load/unload	Reduces power during idle periods
	ECC and CRC protection	Data integrity enhanced throughout circuits
	ECC and CRC protection	Reduces power during idle periods
	SMART Command Transport (SCT)	Adaptive error correction
	Internal thermal sensor	Improves data integrity

SATA 3.0Gb/s Features

3.0Gb/s (300MB/s) interface data rate
Low duty cycle servers
Staggered (delayed) spin-up
Hot plug capability
Click connect connector
Scalable performance
System improvements

Applications

Consumer computers
Mid range servers
External storage
Extreme PC gaming
Video editing arrays

Hitachi quality and service

The Hitachi Deskstar T7K500 extends on the companies reliability and performance leadership. Hitachi’s standardized features in consumer and mid-range server solutions to enable faster transfer rates, scalable performance and quicker boot up times.

Hitachi is dedicated to providing a breadth of hard disk drive products to satisfy all of today’s demanding computing needs. Hitachi hard drives are backed by an array of technical support and services which may include customer and integration service.

Hitachi Deskstar T7K500 hard disk drives specifications

Deskstar T7K500 models	Capacity (GB)	RPM	Interface
HDT725050VLA380	500	7200	Serial-ATA
HDT725040VLA380	400	7200	Serial-ATA
HDT725032VLA380	320	7200	Serial-ATA
HDT725025VLA380	250	7200	Serial-ATA
HDT725050VLA360	500	7200	Serial-ATA
HDT725040VLA360	400	7200	Serial-ATA
HDT725032VLA360	320	7200	Serial-ATA
HDT725025VLA360	250	7200	Serial-ATA

Configuration
Interface	SATA 3.0Gb/s
Capacity (GB)¹	500 / 400 / 320 / 250
Data heads (physical)	6 / 5 / 4 / 3
Data disks	3 / 3 / 2 / 2

Performance
Data buffer²	8 MB or 16MB - see line listing description
Rotational speed (RPM)	7,200
Media transfer rate (max. Mbits/sec)	998
Interface transfer rate (max. MB/sec)	300
Seek time average, (read, typical (MS))³	8.5

Reliability
Error rate (non-recoverable)	1 in 10E14
Start/stops (at 40° C)	50,000
Availibility⁴	24/7

Acoustic
Idle (Bels)	3.0 (3disk) 2.8 (2 disk)

Power
Requirement	+5 VDC (± 5%), +12 VDC (+10%/-8%)
Dissipation
Startup current (max. A)	2.0 (+12V) & 1.3 (+5V)
Idle (W)	7.0 (3 disk) 6.0 (2 disk)

Physical size
Height (mm)	26.1
Width (mm)	101.6
Depth (mm)	147
Weight (max. g)	640

Environmental characteristics
Operating
Ambient temperature	0° to 60°C
Relative humidity (non-condensing)	8% to 90%
Shock (half sine wave, 2ms)	55G
Vibration (random (RMS)	0.67G for horizontal 0.67G for vertical

Non-operating
Ambient temperature	-40° to 65° C
Relative humidity (non-condensing)	5% to 95%
Shock (half sine wave, 2ms)	300G
Vibration (random (RMS)	1.04G rms (XYZ)

RoHS compliant⁵	Yes

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

² Buffer capacity includes 270 KB used for drive firmware.

³ Includes command overhead.

⁴ Low duty cycle, non mission-critical applications in PC, nearline, consumer electronics and customer environments are different from application to application.

⁵ RoHS refers to the European Union Directive 2002/95/EC on the restriction of certain hazardous substances in electronic equipment.

Specific application environments such as temperature and duty cycle will affect the overall reliability rates. For specific application environment reliability rates, please consult Hitachi technical support.