China 1tb Hard Disk Drive 3.5 Inch SATA Hard Drive Wd Purple HDD for Security DVR NVR

Product Benefits
Full range of nearline capacities
From entry-level servers to high end enterprise storage systems, WD
Gold™ hard drives offer the capacities required for the most demanding datacenter environments.High workload capabilityDelivering both performance and reliability to any datacenter
environment, WD Gold™ hard drives are designed to handle workloads up to 550TB per year which is among the highest workload capability of any 3.5- inch hard drive.
High level of reliabilityWith up to 2.5 million hours MTBF, WD Gold™ hard drives deliver one of the highest levels of reliability and durability for yearly operation
(24x7x365) within the most demanding storage environments.Vibration protectionEnhanced RAFF™ technology includes sophisticated electronics to monitor the drive and correct both linear and rotational vibration in real time. The result is a significant performance improvement in high vibration environments over our desktop hard drives.RAID-specific, time-limited error recovery (TLER)Reduces drive fallout caused by the extended hard drive error-recovery processes common to desktop drives.Extended thermal burn-in testEach drive is put through extended burn-in testing with thermal cycling to ensure reliable operation.Dynamic fly height technologyEach read-write head's fly height is adjusted in real time for optimum reliability.Dual actuator technologyA head positioning system with two actuators that improves positional accuracy over the data track(s). The primary actuator provides coarse displacement using conventional electromagnetic actuator principles. The secondary actuator uses piezoelectric motion to fine tune the head positioning to a higher degree of accuracy.Compatibility testingAll WD Gold™ hard drives are extensively tested across a variety of popular OEM storage systems, SATA controllers, and host bus adapters, to ensure ease of integration for a plug and play solution."Premium supportDedicated 24x7 over the phone support is included with every WD Gold™ hard drive.

ApplicationsEnterprise servers, datacenter environments, enterprise storage systems, data warehousing/mining, enterprise NAS, and high end surveillance systems.
The WD AdvantageWD puts datacenter products through extensive Functional Integrity Testing (F.I.T.) prior to any product launch. This testing ensures our products consistently meet the high quality and reliability standards of the WD brand. Following a FIT test the Enterprise System Group (ESG) testing validates interoperability with HBAs, operating systems, and drivers, to ensure an even greater level of quality, reliability, and peace of mind.
WD also has a detailed Knowledge base with helpful articles and software utilities. Our customer support lines have long operational hours to ensure you get the help you need when you need it. Our toll-free customer support lines are here to help or you can access our WD Support site for additional details.

Specifications3TB2TB1TB512 emulation model number1WD8002FRYZWD6002FRYZ 512 native model number1 WD4002FYYZLogical/Physical bytes per sector512 / 4096512 / 4096512 / 512Formatted capacity23TB2TB1TB512n/512e user sectors per drive15,628,053,16811,721,045,1687,814,037,168Interface2SATA 6 Gb/sSATA 6 Gb/sSATA 6 Gb/sNative Command QueuingYesYesYesForm Factor3.5-inch3.5-inch3.5-inchRoHS compliant3YesYesYesPerformanceData transfer rate (max)2 Buffer to host
Host to/from drive (sustained)
6 Gb/s
205 MB/s
6 Gb/s
226 MB/s
6 Gb/s
201 MB/sCache (MB)128128128Performance Class7200 RPM Class7200 RPM Class7200 RPM ClassReliability/Data IntegrityLoad/unload cycles4600,000600,000600,000Non-recoverable read errors per bits read<1 in 1015<1 in 1015<1 in 1015MTBF (hours)52,500,0002,000,0002,000,000AFR (%)50.350.440.44Limited warranty (years)6555Power ManagementAverage power requirements (W) Sequential read
Sequential write Random read/write
Idle
7.2
7.0
7.4
5.1
9.3
8.9
9.1
7.1
9.0
8.7
8.8
7.0Environmental Specifications7Temperature (°C) Operating Non-operating
5 to 60
-40 to 70
5 to 60
-40 to 70
5 to 60
-40 to 70Shock (Gs)
Operating (half-sine wave, 2 ms) Non-operating (half-sine wave)
70G
300 (1ms)/150 (11ms)
70G
300 (1ms)/150 (11ms
70G
300 (1ms)/150 (11msAcoustics (dBA)8 Idle
Seek (average)
20
36
29
36
29
36Physical DimensionsHeight (in./mm, max)1.028/26.11.028/26.11.028/26.1Length (in./mm, max)5.787/1475.787/1475.787/147Width (in./mm, ± .01 in.)4/101.64/101.64/101.6Weight (lb/kg, ± 10%)1.43/0.651.58/0.7151.58/0.715