---
product_id: 420527069
title: "Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5\" - WD42PURZ"
brand: "western digital"
price: "321208CFA"
currency: XOF
in_stock: true
category: "Western Digital"
url: https://www.desertcart.sn/products/420527069-western-digital-4tb-wd-purple-surveillance-internal-hard-drive-hdd
store_origin: SN
region: Senegal
---

# SATA 6 Gb/s blazing interface 4TB massive storage 256MB cache for smooth write Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD42PURZ

**Brand:** western digital
**Price:** 321208CFA
**Availability:** ✅ In Stock

## Summary

> 🎥 Capture Every Frame, Secure Every Moment

## Quick Answers

- **What is this?** Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD42PURZ by western digital
- **How much does it cost?** 321208CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/420527069-western-digital-4tb-wd-purple-surveillance-internal-hard-drive-hdd)

## Best For

- western digital enthusiasts

## Why This Product

- Trusted western digital brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **AllFrame Technology:** Minimizes frame loss and ensures crystal-clear video playback, so you never miss a moment.
- • **Plug & Play Simplicity:** Super easy installation saves you time and stress—upgrade your system without the tech headache.
- • **High Workload Endurance:** Supports up to 180 TB/year workload—built to handle heavy, write-intensive surveillance data streams.
- • **Power-Efficient Performance:** Optimized for lower power consumption, keeping your surveillance system cool and cost-effective.
- • **Surveillance-Grade Reliability:** Engineered for 24/7 nonstop video recording in harsh environments—no downtime, no excuses.

## Overview

The Western Digital 4TB WD Purple HDD is a surveillance-optimized internal hard drive designed for 24/7 operation in demanding environments. Featuring SATA 6 Gb/s interface, 256MB cache, and AllFrame technology, it delivers reliable, high-capacity storage with minimized video frame loss. Ideal for business and personal security systems, it supports up to 180 TB/year workload and up to 16-bay configurations, ensuring seamless, power-efficient performance for continuous HD video recording.

## Description

The Right Drive for the Right Job. 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, 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.

## Features

- Engineered specifically for mainstream surveillance systems.Specific uses: Business, personal
- AllFrame technology delivers optimizations for write-intensive, low bit-rate, high stream-count workloads typical to mainstream surveillance applications.
- Supports up to 180 TB/yr workload rate². | ²Workload Rate is defined as the amount of user data transferred to or from the hard drive. Workload Rate is annualized (TB transferred ✕ (8760 / recorded power-on hours)). Workload Rate will vary depending on your hardware and software components and configurations.
- 1TB¹ through 3TB support up to eight bays; 4TB and above support up to 16 bays and employ tarnish-resistant components for harsher environments.
- ¹As used for storage capacity, 1TB = one trillion bytes. Actual user capacity may be less, depending on operating environment.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09MSDP2DT |
| Additional Features | Data Recovery Service |
| Best Sellers Rank | #24 in Internal Hard Drives |
| Brand | Western Digital |
| Built-In Media | Internal Hard Drive |
| Cache Memory Installed Size | 4 TB |
| Color | Purple |
| Compatible Devices | Desktop |
| Compatible Video Game Console Models | Sony PlayStation 5 |
| Connectivity Technology | SATA |
| Customer Reviews | 4.5 4.5 out of 5 stars (955) |
| Digital Storage Capacity | 4 TB |
| Enclosure Material | Aluminum |
| Form Factor | 3.5-inch |
| Global Trade Identification Number | 00718037887944 |
| Hard Disk Description | Mechanical Hard Disk |
| Hard Disk Form Factor | 3.5 inches |
| Hard Disk Interface | Serial ATA |
| Hard-Drive Size | 4 TB |
| Hardware Connectivity | SATA 6.0 Gb/s |
| Hardware Platform | PC |
| Installation Type | Internal Hard Drive |
| Item Dimensions L x W x Thickness | 5.79"L x 4"W x 1.03"Th |
| Item Weight | 1.3 pounds |
| Manufacturer | Western Digital Technologies, Inc. |
| Media Speed | 175 |
| Mfr Part Number | WD42PURZ |
| Model Name | Purple HDD |
| Model Number | WD42PURZ |
| Number of Items | 1 |
| Read Speed | 175 megabytes_per_second |
| Specific Uses For Product | business, personal |
| UPC | 718037887944 |
| Unit Count | 1 Count |
| Warranty Description | 3 year Limited Warranty |

## Product Details

- **Brand:** Western Digital
- **Color:** Purple
- **Compatible Devices:** Desktop
- **Connectivity Technology:** SATA
- **Digital Storage Capacity:** 4 TB
- **Hard Disk Description:** Mechanical Hard Disk
- **Hard Disk Form Factor:** 3.5 inches
- **Hard Disk Interface:** Serial ATA
- **Installation Type:** Internal Hard Drive
- **Special Feature:** Data Recovery Service

## Images

![Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD42PURZ - Image 1](https://m.media-amazon.com/images/I/61phbPE+xLL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: capacidad 1tb y estilo 4 tb, es un error?**
A: Como sabras,el HDD que compré,fue para ser instalado en un sistema de camaras o sea en un NVR para correr con 14 camaras IP,y se suponia que se pudiera hacer un FORMAT para ponerlo a trabajar,pero al ejecutar la operacion nunca la realizó. De modo que de ninguna manera se pudo hacer la operacion y hubo de abortarse su uso. Esta es la informacion del disco: Western Digital Disco duro interno de vigilancia púrpura de 4 TB - SATA 6 Gb/s .
La pregunta technica que me haces,creo que no viene al caso,pues el frabricante del disco dice en sus recomendaciones,que puede trabajar hasta con 64 camaras y yo solo uso 14 en el sistema que poseo.

**Q: What is the warranty for this had? I don't see it listed anywhere.**
A: Three-Year Limited Warranty
As an industry-leading hard drive manufacturer, Western Digital stands behind their surveillance storage solutions with a 3-year limited warranty6 included with every WD Purple drive.

**Q: Would this hard drive work with the night owl btd2 system?**
A: If its SATA format

**Q: Is this 4K?**
A: I believe it is.

## Frequently Bought Together

- Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD42PURZ
- Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ
- Western Digital 10TB WD Purple Pro Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD101PURP

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-09-17*