---
product_id: 405828201
title: "4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5\" - WD42PURZ"
brand: "western digital"
price: "2713.28 DT"
currency: TND
in_stock: true
category: "Western Digital"
url: https://www.desertcart.tn/products/405828201-4tb-wd-purple-surveillance-internal-hard-drive-hdd-sata-6
store_origin: TN
region: Tunisia
---

# SATA 6 Gb/s blazing interface 4TB massive storage AllFrame tech for zero frame loss 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD42PURZ

**Brand:** western digital
**Price:** 2713.28 DT
**Availability:** ✅ In Stock

## Summary

> 🔒 Lock in your security with storage that never blinks.

## Quick Answers

- **What is this?** 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?** 2713.28 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/405828201-4tb-wd-purple-surveillance-internal-hard-drive-hdd-sata-6)

## 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

- • **Massive 4TB Capacity:** Store months of high-res footage with room to spare—never worry about running out of space.
- • **Power-Efficient & Durable:** Engineered with tarnish-resistant components to thrive in harsh, heat-fluctuating environments.
- • **Advanced AllFrame Technology:** Minimizes video frame loss and ensures smooth playback for critical security footage.
- • **Surveillance-Grade Reliability:** Built to endure 24/7 high-def security workloads without breaking a sweat.
- • **Optimized for Multi-Camera Systems:** Supports up to 16 bays, perfect for scaling your surveillance setup effortlessly.

## Overview

The Western Digital 4TB WD Purple HDD is a surveillance-optimized internal hard drive featuring SATA 6 Gb/s interface, 256 MB cache, and AllFrame technology to reduce video frame loss. Designed for 24/7 operation in multi-camera setups up to 16 bays, it supports up to 180 TB/year workload and is built to withstand heat and vibration in demanding environments.

## 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 |
| Best Sellers Rank | #47,885 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #102 in Internal Hard Drives |
| Box Contents | Internal Hard Drive |
| Brand Name | Western Digital |
| Cache Memory Installed Size | 4 TB |
| Color | Purple |
| Compatible Devices | Desktop |
| Country of Origin | China |
| Customer Reviews | 3.8 3.8 out of 5 stars (2,123) |
| Digital Storage Capacity | 4 TB |
| Enclosure Material | Aluminium |
| Form Factor | 3.5-inch |
| Global Trade Identification Number | 00718037887944 |
| Hard Disk Form Factor | 3.5 Inches |
| Hard Disk Interface | Serial ATA |
| Hard Disk Type | Mechanical Hard Disk |
| 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 | 14.7L x 10.2W x 2.6Th Centimeters |
| Item Weight | 572 g |
| Manufacturer | Western Digital |
| Manufacturer Part Number | WD42PURZ |
| Media Speed | 175 |
| Model Name | Purple HDD |
| Model Number | WD42PURZ |
| Network Connectivity Technology | SATA |
| Number of Items | 1 |
| Product Features | Data Recovery Service |
| Read Speed | 175 Megabytes Per Second |
| Specific Uses For Product | business, personal |
| UPC | 718037887944 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Western Digital
- **Colour:** 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

![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 **Pattern, Size, Style** options.

## Questions & Answers

**Q: Cmr or smr?**
A: Cmr

**Q: is it supported HIKVISION DVR ?**
A: Yes 100%

**Q: Is this compatible with TP-Link VIGI NVR1008H VIGI--without additonal efforts/power supply?**
A: Yes you can directly connect in your NVR. Power connection and SATA Connection available inside NVR only.

**Q: What is rpm?**
A: 7200

## 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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.tn/products/405828201-4tb-wd-purple-surveillance-internal-hard-drive-hdd-sata-6](https://www.desertcart.tn/products/405828201-4tb-wd-purple-surveillance-internal-hard-drive-hdd-sata-6)

---

*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-09-06*