Name: Western Digital WD42PURZ internal hard drive 4 TB 3.5" Serial ATA
Brand: Western Digital
SKU: b50753e2-dc6b-4d6d-ad49-eeca591645e5
Availability: InStock

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Description

Uncompromising Storage with a WD Purple Surveillance Hard DriveWD 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. and some of our latest models (WD22PURZ. WD42PURZ. and WD63PURZ) have improved power efficiency. Exclusive AllFrame™ technology helps reduce frame loss and improve overall video playback.Industry-Leading Storage. Surveillance You Can Trust.Western Digital is a worldwide leader in the hard drive industry. With WD Purple™ surveillance storage. you have a drive engineered for high temperature. always-on surveillance systems so you can rely on quality video playback when you need it most. Whether you’re protecting loved ones or monitoring your business. WD Purple™ offers performance you can trust.Western Digital's Exclusive AllFrame™ TechnologyAll 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 RatingsWD Purple™ drives feature a workload rating of up to 180TB/year2 - up to three times that of desktop drives - to handle the unique demands of mainstream video surveillance DVR and NVR systems. Multiple Cameras. Multiple StreamsModern recorders now support multiple video streams per camera. WD Purple™ drives support up to 64 single-stream HD cameras (6TB and above). 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 SolutionsWith an MTBF of up to 1 million hours. WD Purple™ drives are engineered for mainstream surveillance DVRs and NVRs that operate 24/7. With tarnish-resistant components3 and support for more than eight bays. WD Purple drives deliver reliable operation even in harsh environments.Wide Compatibility. Seamless Integration.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 WDDAWestern 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.

Full specifications

Marque	Western Digital
Référence fabricant	wd42purz
EAN	5704174872917

Western Digital WD42PURZ internal hard drive 4 TB 3.5" Serial ATA: complete technical analysis for 2026

The Western Digital WD42PURZ internal hard drive 4 TB 3.5" Serial ATA is a well-regarded reference in the SSD & disques durs category. In 2026, it remains one of the most relevant choices for those seeking to balance quality and budget. The brand Western Digital has a strong reputation among consumers, reflected in its consistent availability across many partner retailers. Thanks to our comparison tool, you can see all available offers at a glance and go directly to the retailer of your choice to complete your purchase with confidence.

Who is this SSD & disques durs for?

The Western Digital WD42PURZ internal hard drive 4 TB 3.5" Serial ATA benefits from the expertise of Western Digital in this category. Its design meets current market standards and satisfies even the most demanding users in their everyday activities. The brand's reliability translates into positive feedback from regular buyers, who particularly appreciate the consistency between the promises of the product sheet and the real-world experience. For the SSD & disques durs category, this is an option we recommend without hesitation. Also check Laptops for closely related alternatives.

For intensive or occasional use

The Western Digital WD42PURZ internal hard drive 4 TB 3.5" Serial ATA adapts to different levels of use in the SSD & disques durs category. Whether you use it intensively every day or more occasionally, this Western Digital product offers appreciated versatility. Regular users value its reliability over time, while occasional users appreciate how easy it is to pick up without any special training. For even more demanding use, also check the Western Digital WD Purple internal hard drive 8 TB 7200 RPM 256 MB 3.5.

Against the competition

In the SSD & disques durs market, the Western Digital WD42PURZ internal hard drive 4 TB 3.5" Serial ATA is well positioned thanks to its price from £260.4 and the strength of Western Digital. Our comparison tool lets you verify in real time whether this positioning still holds against other available offers. Broaden your comparison with the products available in Laptops.

The best times to buy the Western Digital WD42PURZ internal hard drive 4 TB 3.5" Serial ATA at a lower price are Black Friday in November, the January sales and the summer sales in July. Our price history lets you judge whether the current price is a genuine bargain or whether it is worth waiting a few weeks. Outside these periods, flash promotions remain frequent among Compiral's partner retailers.

Frequently asked questions about Western Digital WD42PURZ internal hard drive 4 TB 3.5" Serial ATA

How does the Western Digital WD42PURZ internal hard drive 4 TB 3.5" Serial ATA compare to competitors in the SSD & disques durs category?

In the SSD & disques durs category, the Western Digital WD42PURZ internal hard drive 4 TB 3.5" Serial ATA occupies a specific market segment. Compared to other available models, it stands out mainly through the balance between its features and its price. To compare objectively, consult the detailed spec sheet on this page and compare specifications with other similar products listed on our comparison tool.

Is the Western Digital WD42PURZ internal hard drive 4 TB 3.5" Serial ATA suitable for beginners?

Yes, the Western Digital WD42PURZ internal hard drive 4 TB 3.5" Serial ATA is generally appreciated by both beginners and regular users of the SSD & disques durs category. It is quick to set up and Western Digital usually provides clear documentation. If you are new to this product category, consult the spec sheet on this page to identify the key criteria to check before making your choice.

Is there a refurbished version of the Western Digital WD42PURZ internal hard drive 4 TB 3.5" Serial ATA?

Refurbished versions of the Western Digital WD42PURZ internal hard drive 4 TB 3.5" Serial ATA may be available from certain Compiral partner retailers. These refurbished products allow you to save between 20% and 40% compared to the new price while still benefiting from a warranty. Check availability in our offers table and review the warranty conditions offered by the retailer.

When do prices for the Western Digital WD42PURZ internal hard drive 4 TB 3.5" Serial ATA drop during the year?

Prices for the Western Digital WD42PURZ internal hard drive 4 TB 3.5" Serial ATA typically drop during Black Friday (November), the January sales and the summer sales (July). Promotional deals are also common around Cyber Monday and the holiday season. Our price history lets you spot trends and assess whether a price drop is likely soon in the SSD & disques durs category.

Is delivery free for the Western Digital WD42PURZ internal hard drive 4 TB 3.5" Serial ATA at all retailers?

Free delivery is not guaranteed for the Western Digital WD42PURZ internal hard drive 4 TB 3.5" Serial ATA at every retailer. Some include it in their price, others charge separately. On Compiral, use the free delivery filter to display only offers with free postage. The total price shown in our table always includes delivery costs for a true cost comparison.