Brand: Western Digital · SKU: WD4NPUX · MPN: WD4NPURX · Category: Security
The WD4NPURX is a Western Digital Purple NV 4TB 3.5-inch internal hard drive specifically engineered for mainstream video surveillance DVR and NVR systems operating 24/7. It features a 5400 RPM Class speed, SATA 6Gb/s interface, and 64MB Cache (some sources indicate 256MB cache for the WD40PURX, but the search results specifically for WD4NPURX mention 64MB, which is used here for this specific SKU). WD Purple drives come equipped with AllFrame technology (or AllFrame 4K for some capacity tiers) which improves ATA streaming to reduce frame loss and improve overall video playback. They have an enhanced workload rating of up to 180TB/year, supporting surveillance systems with many cameras (up to 64 single-stream HD cameras supported by similar WD Purple drives). They also feature tarnish-resistant components and support for operation in systems with multiple drive bays, designed to withstand the harsh, always-on environment of a surveillance system. Some listings indicate the condition mi
| RPM | 5400 |
|---|---|
| MTBF | Up to 1,000,000 hours |
| Cache | 64MB |
| Feature | AllFrame technology |
| Capacity | 4TB |
| Interface | SATA 6Gb/s |
| Form Factor | 3.5-inch |
| Product Line | Purple NV |
| Workload Rating | Up to 180TB/year |
| Recording Technology | CMR |
| Warranty | 3-year limited warranty (for WD Purple series generally) |
| Weight | 0.72 kg |
| Dimensions | 147 x 101.6 x 26.1 mm |
4TB Surveillance Hard Drive designed for 24/7 operation in NVR/DVR systems. Features 5400 RPM, SATA 6Gb/s interface, and AllFrame technology to improve video stream reliability. Supports up to 180TB/year workload.
Yes, this WD4NPURX Western Digital Purple NV 4TB 5400RPM SATA 6Gb/s 64MB Cache 3.5-Inch Surveillance Hard Drive (WD4NPUX) is 100% genuine Western Digital hardware. All our products are verified by certified technicians and come with clean serial numbers ready for service contract registration.
This WD4NPURX Western Digital Purple NV 4TB 5400RPM SATA 6Gb/s 64MB Cache 3.5-Inch Surveillance Hard Drive includes our standard 3-Year Warranty covering all manufacturing defects. We also offer advanced replacement options for minimal downtime.
We offer free ground shipping which typically takes 3-5 business days. Expedited shipping options are available at checkout for faster delivery.
Yes, we have a 30-day return policy on all products. Restocking fees may apply for opened items. Please see our return policy for complete details.
Please check the specifications tab for detailed compatibility information. Our technical team is available to assist with compatibility questions for the WD4NPUX.