Western Digital AV HDD 4000GB Serial ATA III internal hard drive

24x7 reliability. These drives are designed to last in always-on, streaming digital audio/video environments such as PVRs, DVRs and surveillance video recorders.Reduced power consumption. With the combination of WD's IntelliSeek, IntelliPark, and IntelliPower technologies, WD has reduced power consumption by up to 40 percent compared to competitors' drives.Whisper quiet. Noise levels have been minimized to less than one sone – virtually below the threshold of human hearing.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.IntelliPark. Delivers lower power consumption by automatically unloading the heads during idle to reduce aerodynamic drag.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.Advanced Format Technology (AF). Technology being adopted by WD and other drive manufacturers as one of multiple ways to continue growing hard drive capacities. AF is a more efficient media format that enables increased areal densities.Lo

Hard drive
Hard drive interface	Serial ATA III
Drive device, buffer size	64 MB
IntelliPower	Yes
Start/stop cycles	300000
Device type	HDD
Data transfer rate	6 Gbit/s
Hard drive speed	5400 RPM
Hard drive size	3.5"
Hard drive capacity	4000 GB
Power
Power consumption (typical)	4.4 W
Operational conditions
Operating temperature (T-T)	0 - 70 °C
Storage temperature (T-T)	-40 - 70 °C
Weight & dimensions
Width	101.6 mm
Weight	730 g
Height	26.1 mm
Depth	147 mm
Packaging content
Quantity	1
Technical details
Quantity	1
Device type	HDD
Packaging data
Quantity	1
Other features
Device type	HDD
Data transfer rate	6 Gbit/s

• Capacity: 4TB

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      • Most items include a 30-day limited DOA (Dead on Arrival) exchange warranty for replacement with the same part only.

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