WD Purple Hard Drive 4000GB

 

Product Highlights

 

WD Purple:

WD Purple™ drives are engineered specifically for surveillance to help withstand the elevated heat fluctuations and equipment vibrations within NVR environments. An average desktop drive is built to run for only short intervals, not the harsh 24/7 always-on environment of a high-definition surveillance system. With WD Purple, you get reliable, surveillance-class storage that’s tested for compatibility in a wide range of security systems. Exclusive AllFrame™ technology helps reduce frame loss and improve overall video playback.

 

Key Advantages

Western Digital's Exclusive AllFrame Technology

All WD Purple™ drives are equipped with AllFrame™ technology, which improves ATA streaming to help reduce frame loss and improve overall video playback, within a multitude of security video solutions.

Enhanced Workload Ratings

WD Purple™ drives feature a workload rating of up to 180TB/year⁷ - up to three times that of desktop drives - to handle the unique demands of mainstream video surveillance DVR and NVR systems.

Multiple Cameras, Multiple Streams

Modern recorders now support multiple video streams per camera. Select WD Purple™ drives support up to 64 single-stream HD cameras (see specifications table), and can also support many of the latest cameras that transmit multiple streams to enable basic AI functionality. With so many options, you have the flexibility to upgrade or expand your security applications in the future.

Designed for Today's and Tomorrow's Surveillance Solutions

With an MTBF of up to 1 million hours¹, WD Purple™ drives are engineered for mainstream surveillance DVRs and NVRs that operate 24/7. With tarnish-resistant components² and support for more than eight bays², WD Purple drives deliver reliable operation in surveillance systems even in harsh environments.

Wide Compatibility. Seamless Intergration.

WD Purple™ hard drives are built with compatibility in mind, so you can quickly and seamlessly add capacity to your surveillance system. With a wide range of industry-leading enclosures and chipsets supported, you’re sure to find the DVR or NVR configuration that’s right for you.

Proactive Storage Management with WDDA

Western Digital Device Analytics™ (WDDA) provides a wealth of storage device parametric operational and diagnostic data to the system; algorithms interpret the data and direct the system to alert system administrators of specific recommended actions to address potential issues. WDDA is intended to empower OEMs, system integrators, and IT professionals to better monitor and proactively manage supported storage devices to maintain optimal operation.

Three-Year Limited Warranty

As an industry-leading hard drive manufacturer, Western Digital stands behind their surveillance storage solutions with a 3-year limited warranty included with every WD Purple™ drive.

 

Specifications:

Specifications	4TB	3TB	2TB	2TB	1TB
Model Number	WD40PURZ	WD30PURZ	WD22PURZ	WD20PURZ	WD10PURZ
Formatted capacity	4TB	3TB	2TB	2TB	1TB
Form factor	3.5-inch	3.5-inch	3.5-inch	3.5-inch	3.5-inch
Advanced format (AF)	Yes	Yes	Yes	Yes	Yes
RoHs compliant	Yes	Yes	Yes	Yes	Yes
Product Features
Cameras supported	Up to 64	Up to 64	Up to 64HD	Up to 64	Up to 64
Drive bays supported	16	8	8	8	8
Al streams	-	-	-	-	-
Firmware feature name	AllFrame Al	AllFrame Al	AllFrame Al	AllFrame Al	AllFrame Al
Tarnish resistant components	Yes	No	No	No	No
Performance
Interface transfer rate
Buffer to host	6 Gb/s	6 Gb/s	6 Gb/s	6 Gb/s	6 Gb/s
Host to/from drive (sustained)	150MB/s	145MB/s	175MB/s	145MB/s	110 MB/s
Cache (MB)	64	64	256	64	64
Reliability/Data Integrity
Load/unload cycles	300,000	300,000	300,000	300,000	300,000
Annualized workload rating	180TB/yr	180TB/yr	180TB/yr	180TB/yr	180TB/yr
Non-recoverable read errors per bits read	<1 in 10^14	<1 in 10^14	<1 in 10^14	<1 in 10^14	<1 in 10^14
MTBF	1,000,000	1,000,000	1,000,000	1,000,000	1,000,000
Limited warranty (years)	3	3	3	3	3
Power Management
Average Power Requirements
Read/Write	5.1	5	3.8	4.4	3.8
Idle	4.5	4.4	3.2	4.1	3.2
Standby and Sleep	0.4	0.4	0.3	0.4	0.6
Enviromental Specification
Temperature ('C, on the base cast)
Operating (W)	0 to 65	0 to 65	0 to 65	0 to 65	0 to 65
Non-operating	-40 to 70	-40 to 70	-40 to 70	-40 to 70	-40 to 70
Shock (Gs)
Operating (2ms, read/write)	30	30	30	30	30
Operating (2ms, read)	65	65	65	65	65
Non-operating	250	250	250	250	250
Acoustis (dBA)
Idle	25	23	21	23	21
Seek (average)	28	24	26	24	22
Physical Dimensions
(Height (in./mm, max)	1.028/26.1	1.028/26.1	1.028/26.1	1.028/26.1	1.028/26.1
Length (in./mm, max)	5.787/147	5.787/147	5.787/147	5.787/147	5.787/147
Width (in./mm, ±01in.)	4/101.6	4/101.6	4/101.6	4/101.6	4/101.6
Weight (lb/kg. ±10%)	1.50/0.68	1.40/0.64	0.99/0.45	1.32/0.60	0.99/0.45

 

 

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