# HDD Western Digital 4TB 3.5inch SATA 6Gb/s WD42PURZ-SS

**URL:** https://aio.lv/en/product--western-digital-wd42purz-ss--11556212
**Data updated:** 2026-02-15 12:50 (EET)
**Category:** Hard Disk Drives (HDD)
**Manufacturer:** Western Digital
**Manufacturer code:** WD42PURZ-SS
**EAN:** 5715063007860
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The WD Purple 4TB HDD is designed for surveillance systems, offering a 256MB cache and SATA 6Gb/s interface. It provides reliable performance for continuous video recording and playback, ensuring data integrity and durability in high-demand environments. Ideal for security applications, it supports multiple HD video streams and is optimized for 24/7 operation.

## Long description

The WD Purple 4TB 3.5-inch SATA 6Gb/s HDD is engineered for surveillance storage, providing large capacity and sustained performance for continuous video recording and playback. With a 256MB cache and a SATA 6Gb/s interface, this drive is optimized for multi-camera systems and 24/7 operation, helping to preserve recorded footage and maintain consistent write performance under heavy loads.
Advantages
This surveillance-class hard drive delivers stable sequential write performance and a sizeable 256MB cache to improve buffering of video streams. It is built for durability in always-on environments, offering firmware tuned for error recovery and workload patterns typical of security applications. The SATA 6Gb/s interface ensures compatibility with modern DVRs, NVRs and surveillance-capable motherboards, while the 3.5-inch form factor provides straightforward installation in standard bays.
Suitable for
Home and small business DVR/NVR systems recording multiple HD camera streams
Enterprise surveillance arrays requiring continuous 24/7 recording
Video archival and storage for security evidence retention
Replacement or upgrade of existing 3.5-inch surveillance drives
Key specifications
Capacity: 4 TB of usable storage for recorded video and data
Form factor: 3.5-inch drive compatible with standard desktop and rack-mounted bays
Interface: SATA 6 Gb/s for data transfer and system compatibility
Cache: 256 MB buffer to enhance sustained write and read throughput
Optimized workload: designed for continuous, high-write surveillance workloads
How to use
Install the 3.5-inch drive into a compatible drive bay and connect it to the host system using a SATA data cable and appropriate power connector. Configure the drive within your DVR/NVR or operating system using the storage management interface, initialize and format the drive according to the surveillance system requirements, and assign it to recording pools or channels as needed. Monitor drive health via SMART or the system's drive diagnostic tools and follow regular backup procedures for critical footage.
Usage recommendations
Use this drive in systems designed for continuous recording and select firmware or controller settings optimized for surveillance workloads. Maintain proper cooling and ventilation in multi-drive enclosures, implement a retention and backup strategy for important footage, and periodically check drive health indicators to preemptively replace drives showing degraded performance.

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Western Digital products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Western Digital service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

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