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Hard Drives - Internal -> Serial ATA (SATA) - 3.5" -> Western Digital

Western Digital 250GB 7200rpm Serial ATA-II-300 HDD w. 8MB Cache (WD2500AVJS) AV

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Our Price:
$71.50

RRP: $99.00

You Save: $27.50

Techbuy Part No: 79977

Usually Ships: Same Day Details

Brand: Western Digital Web Site

Manuf No:

Shipping Weight: 1 KG How Much?

Date Added: 25/1/2008

Rating: Not Rated

Currency: AUD Convert

Product Description

WD AV

SATA Hard Drives
250 GB, Up to 30 Hours HD Video

Reliable
Cool and Quiet
Compatible

Significant design advances in WD's hard drive technology, combine optimized AV performance with best-in-class power consumption and thermally optimized operation enabling unparalleled cost of ownership for manufacturers of digital video recording devices.

Long-Term Reliability - With a MTBF of 1 million hours, these drives are designed to last in high temperature always-on streaming digital audio/video environments such as PVR/DVR, DVR recorders and surveillance video recorders.

Quiet - Noise levels have been minimized to less than one sone* - virtually below the threshold of human hearing.

Low Power Consumption - WD AV drives deliver best-in-class low power consumption for reduced system power requirements and increased reliability.
Note: 3.3V SATA power is not available in this product

Compatible - Tested for compatibility in a broad range of AV products including set top boxes, DVD recorders, and mainstream surveillance systems.

SilkStream - Optimized for smooth, continuous digital video playback of up to twelve simultaneous HD streams**. SilkStream is compatible with the ATA streaming command set so CE customers can use standard streaming management and error recovery options.

IntelliSeek - Calculates optimum seek speeds to lower power consumption, noise and vibration. View demo >

Ramp Load -

Parks the recording heads off the disk surface during spin up, spin down and when the drive is off. This ensures the recording head never touches the disk surface resulting in improved long term reliability due to less head wear, and improved non-operational shock tolerance.

Preemptive Wear Leveling (PWL) - The drive arm frequently sweeps across the disk to reduce uneven wear on the drive surface common to audio video streaming applications.

* A sone is a subjective unit of loudness as perceived by a person with normal hearing.
** Assumes Host Transfer Block size of 2 MB per stream.


Performance Specifications
	Rotational Speed	7,200 RPM (nominal)
	Buffer Size	8 MB
	Average Latency	4.20 ms (nominal)
	Start/Stop Cycles	50,000 minimum
	Acoustics (Sone)	< 1

Seek Times
	Read Seek Time	8.9 ms
	Write Seek Time	10.9 ms (average)
	Track-To-Track Seek Time	2.0 ms (average)
	Full Stroke Seek	21.0 ms (average)

Transfer Rates
	Buffer To Host (Serial ATA)	3 Gb/s (Max)
	Transfer Rate (Buffer To Disk)	972 Mbits/s (Max)


Physical Specifications
	Formatted Capacity	250,059 MB
	Capacity	250 GB
	Interface	SATA 3 Gb/s
	User Sectors Per Drive	488,397,168


Physical Dimensions
English
	Height	1.028 Inches (Max)
	Length	5.787 Inches (Max)
	Width	4.00 Inches (+/- 0.010 inch)
	Weight	1.33 Pounds

Metric
	Height	25.4 mm (Max)
	Length	147 mm (Max)
	Width	101.6 mm
	Weight	0.60 kg


Environmental Specifications
Shock
	Operating Shock (Read)	65G, 2 ms
	Non-operating Shock	350G, 2 ms

Acoustics
	Idle Mode	25 dBA (average)
	Seek Mode 3	26 dBA (average)

Temperature (English)
	Operating	32 F to 140 F
	Non-operating	-40 F to 149 F

Temperature (Metric)
	Operating	-0 C to 60 C
	Non-operating	-40 C to 65 C

Humidity
	Operating	5-95% RH non-condensing
	Non-operating	5-95% RH non-condensing

Altitude (English)
	Operating	-1,000 feet to 10,000 feet
	Non-operating	-1,000 feet to 40,000 feet

Altitude (Metric)
	Operating	-305M to 3,050M
	Non-operating	-305M to 12,200M

Vibration
	Operating
	Linear	20-300 Hz, 0.75 G (0 to peak)
	Random	7-500 Hz (0.00221 g / Hz)

	Non-operating
	Low Frequency	10-300 Hz, 0.195 inches (double amplitude)
	High Frequency	300-500 Hz, 5.0G (0 to peak)


Electrical Specifications
Current Requirements
	12 VDC
	Read/Write	395 mA
	Idle	380 mA
	Standby	6 mA
	Sleep	6 mA

	5 VDC
	Read/Write	660 mA
	Idle	532 mA
	Standby	180 mA
	Sleep	180 mA

	Power Dissipation
	Read/Write	7.80 Watts
	Idle	7.20 Watts
	Standby	0.97 Watts
	Sleep	0.97 Watts

Product Warranty

3 YEARS

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