---
product_id: 536360310
title: "Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5\" - WD43PURZ"
brand: "western digital"
price: "1705.85 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Western Digital"
url: https://www.desertcart.tn/products/536360310-western-digital-4tb-wd-purple-surveillance-internal-hard-drive-hdd
store_origin: TN
region: Tunisia
---

# SATA 6 Gb/s interface 4TB capacity 256 MB cache for smooth streaming Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ

**Brand:** western digital
**Price:** 1705.85 DT
**Availability:** ✅ In Stock

## Summary

> 🎥 Secure every frame with WD Purple — the backbone of your 24/7 surveillance empire!

## Quick Answers

- **What is this?** Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ by western digital
- **How much does it cost?** 1705.85 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/536360310-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

- • **Massive Data Throughput:** Handles up to 180 TB/year workload rate ensuring uninterrupted data flow.
- • **Plug-and-Play Simplicity:** Easy installation with broad compatibility across mainstream surveillance setups.
- • **Tarnish-Resistant Durability:** Built with tarnish-resistant components for long-lasting performance in demanding environments.
- • **Surveillance-Grade Reliability:** Engineered for 24/7 high-definition video recording with heat and vibration resistance.
- • **Optimized for Multi-Camera Systems:** Supports up to 16 bays and high stream-count workloads with WD AllFrame technology.

## Overview

The Western Digital 4TB WD Purple HDD is a surveillance-optimized internal hard drive featuring SATA 6 Gb/s connectivity, 256 MB cache, and a 3.5-inch form factor. Designed for continuous 24/7 operation, it supports up to 16-bay systems and high data workloads (up to 180 TB/year), ensuring reliable, smooth video recording with reduced frame loss. Its tarnish-resistant components and compatibility with a wide range of security systems make it a trusted choice for professional-grade surveillance storage.

## Description

WD Purple drives are designed to meet the challenges of 24x7 video surveillance recording. These 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 drives, you get reliable, surveillance-class storage that’s tested for compatibility in a wide range of security systems. Exclusive WD AllFrame technology helps reduce frame loss and improve overall video playback.

Review: Reliable!!! - This is a very reliable drive; I have three and they work great in both my camera system and my computer. Since it is basically plug and play there is no issues with installation. These are not the cheapest drives but then again you get what you pay for, and these are definitely worth the little extra cost. They seem to last forever, got one that is 6 years old and is still working without a hiccup. Since these are a 4 TB drive, they actually hold about 3.86 TB of data and are pretty quiet compared to other drives I've had in the past.
Review: great value, working great - still working good in dvr a few years later.good brand, reliable.

## Features

- Engineered for mainstream surveillance systems
- WD 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 rate(3) | (3) Workload 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.
- Support for up to 16 bays(7) | (7) 1TB through 2TB support up to eight bays; 3TB and above support up to 16 bays.
- Tarnish-resistant components(6) | (6) Tarnish resistant components for capacities 3TB and higher.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C4X6RDV8 |
| Additional Features | Portable |
| Best Sellers Rank | #9 in Internal Hard Drives |
| Brand | Western Digital |
| Built-In Media | Internal Hard Drive |
| Cache Memory Installed Size | 256 |
| Color | Purple |
| Compatible Devices | Desktop |
| Connectivity Technology | SATA |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.4 out of 5 stars 1,275 Reviews |
| Digital Storage Capacity | 4000 GB |
| Enclosure Material | Aluminum |
| Form Factor | 3.5-inch |
| Global Trade Identification Number | 00718037898308 |
| Hard Disk Description | Mechanical Hard Disk |
| Hard Disk Form Factor | 3.5 inches |
| Hard Disk Interface | Serial ATA-600 |
| Hard Disk Rotational Speed | 5400 rpm |
| Hard-Drive Size | 4 TB |
| Hardware Connectivity | SATA 6.0 Gb/s |
| Installation Type | Internal Hard Drive |
| Item Type Name | Internal Hard Drive |
| Item Weight | 550 g |
| Manufacturer | Western Digital Technologies, Inc. |
| Mfr Part Number | WD43PURZ-SPBWPY0 |
| Model Name | WD Purple HDD |
| Model Number | WD43PURZ |
| Number of Items | 1 |
| Read Speed | 180 megabytes_per_second |
| Special Feature | Portable |
| Specific Uses For Product | Business |
| UPC | 718037898308 |
| Unit Count | 1 Count |
| Warranty Description | 3 Year Limited Warranty |

## Product Details

- **Brand:** WD
- **Color:** Purple
- **Compatible Devices:** Desktop
- **Connectivity Technology:** SATA
- **Digital Storage Capacity:** 4000 GB
- **Hard Disk Description:** Mechanical Hard Disk
- **Hard Disk Form Factor:** 3.5 Inches
- **Hard Disk Interface:** Serial ATA-600
- **Installation Type:** Internal Hard Drive
- **Special Feature:** Portable

## Images

![Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ - Image 1](https://m.media-amazon.com/images/I/71Od7Xf5SwL.jpg)

## Available Options

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

## Questions & Answers

**Q: can it replace older hhd in nightowl dvr**
A: Yes. This hard drive is compatible with all recording units.

**Q: What is the difference between 3tb purple wd30purz and wd30purz, very confusing?**
A: Absolutely nothing. They are the same.

**Q: Is this compatible with annke surveillance camera system 8ch 1080p lite h.264+ dvr with (8) hd 1080p outdoor weatherproof cameras cctv security camera**
A: As the owner of South Jersey Surveillance Systems, I can assure you that any WD purple or Seagate Skyhawk hard drive is the appropriate type of storage drive for any and all DVRs and NVRs.

**Q: Whats the difference between this and the red plus?**
A: WD Blue HDDs are mainly used for general purpose storage, they are great all-rounders, and an average user can’t go wrong with Blue.

WD Green is basically same as Blue, but it lacks a bit of performance. However, it is the most eco-friendly HDD, and it’s quite cheap.

WD Blacks are for pure performance including gaming, media, and content creation. Also one of the most expensive HDDs.

WD Red is a NAS drive. It’s optimized for NAS systems.

WD Purple is for surveillance. Advised for 24/7 operation.

WD Gold, probably the most premium of all. Made for a multitude of Datacenter-specific applications.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Reliable!!!
*by C***W on February 9, 2026*

This is a very reliable drive; I have three and they work great in both my camera system and my computer. Since it is basically plug and play there is no issues with installation. These are not the cheapest drives but then again you get what you pay for, and these are definitely worth the little extra cost. They seem to last forever, got one that is 6 years old and is still working without a hiccup. Since these are a 4 TB drive, they actually hold about 3.86 TB of data and are pretty quiet compared to other drives I've had in the past.

### ⭐⭐⭐⭐⭐ great value, working great
*by S***D on July 1, 2026*

still working good in dvr a few years later.good brand, reliable.

### ⭐⭐⭐⭐⭐ Works in a Hiseeu NVR.
*by S***T on June 30, 2024*

My first HDD was a Seagate 1-TB that came with my Hiseeu NVR. The Seagate lasted just over 1-year and Hiseeu would not replace the HDD unless I gave them a 5-Star review which I was not going to do just to get a free Seagate 1-TB HDD. Plus I would never give a 5-Star review on a junk system that I was sold so instead, I bought this Western Digital 3TB not knowing if it would work but once I installed it, it did work right away without even formatting it. I still did format it eventhough it worked as soon as I plugged into my SATA/ power cables. This product does work. It is easy to install. It's easy to format and it was delivered the next day after ordered. I highly recommend this product for your surveillance camera system. It also has a lot more storage than the 1-TB that comes with the Hiseeu system. This HDD is quiet and I cannot here it at all. It has only been installed for about 48- hours so time will tell how long it will actually last but as of now I am very impressed overall. If something goes wrong with it over time I will update my review but for now 5-Stars.

## Frequently Bought Together

- Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD43PURZ
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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-08-31*