Can I use this as a regular computer drive for backups?

You certainly can, however I would recommend a WD Red or Black depending on use case. If it is in a network attached storage definitely go Red. Black might be better if you are simply keeping it in a desktop PC.

How is the reliability for this product? Specifically owners who had this for 2+ years.

My 2TB WD20PURZ purchased installed with my Lorex Security System has failed after 2 years and 6 months. Of course, there is no warranty left and I must now purchase a replacement. I hope I have better luck with the new drive. At least it comes with a 3 year limited warranty.

1TB - 8TB size drives support up to 64 cameras, too?

There is no direct correlation between number of cameras and drive size. The difference will be how long you can record until the drive is full / the DVR overwrites old footage.

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WD Purple 2TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch WD20PURZ

(29) Write a Review

Supports for more than 8 bays.
Supports up to 180TB/year workload rate.
Engineered specifically for surveillance security systems.
Tuned for write-intensive, low bit-rate, high stream-count applications typical to most surveillance applications.
Prioritized write-operations for maximized surveillance performance.
TLER & ATA streaming support.
Tarnish-resistant components.
3-year limited warranty.

🔥Don't forget your OS, we have Windows 11 OEM, Download and USB versions available

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WD PURPLE 2TB SATA 6 GB/S 64MB INTELLIPOWER 3.5 3 YEARS WARRANTY

Model
Brand	WD
Series	Purple
Model	WD20PURZ
Packaging	Bare Drive

Performance
Interface	SATA 6.0Gb/s
Capacity	2TB
NAND Flash Memory Type	Hard Drive
RPM	5400 RPM
Cache	64MB

Features
Features	Industry-leading storage. Surveillance you can trust Western Digital's Exclusive AllFrame Technology Enhanced Workload Ratings Expand your view to 64 Designed for Today's and Tomorrow's Surveillance Solutions Field-proven High Capacity Wide Compatibility. Seamless Integration Low Power. High efficiency
Usage	For Video Surveillance

Dimensions
Form Factor	3.5"
Height (maximum)	26.10mm
Width (maximum)	101.60mm
Length (maximum)	147.00mm

Additional Information
Date First Available	August 02, 2025

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WD Purple 2TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch WD20PURZ

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WD Purple 2TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch WD20PURZ

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Customer Reviews of the Western Digital WD20PURZ

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