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Item #:
220324370
Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD42PURZ
85% of respondents would recommend this to a friend
Item #:
220324370
BSD 320
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WD Purple drives are engineered specifically for surveillance with improved power efficiency and exclusive AllFrame technology to reduce frame loss and improve video playback.
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What Stands Out
High Capacity
With 4TB of storage, this hard drive is designed for high-volume surveillance, allowing for extensive video recordings without interruptions, making it ideal for security system installations.
Optimized Performance
SATA 6 Gb/s interface and 256 MB cache ensure fast data transfer and improved performance, providing reliable operation even for demanding surveillance applications.
Reliability
Engineered specifically for 24/7 workloads, WD Purple drives feature technologies that enhance durability and longevity, ensuring dependable data retention for critical surveillance footage.
Product Details
| Digital Storage Capacity | 4 TB |
| Hard Disk Interface | Serial ATA |
| Connectivity Technology | SATA |
| Additional Features | Data Recovery Service |
| Hard Disk Form Factor | 3.5 inches (8.9 cm) |
| Compatible Devices | Desktop |
| Specific Uses For Product | business, personal |
| Read Speed | 175 megabytes_per_second |
| Media Speed | 175 |
| Cache Memory Installed Size | 4 TB |
| Form Factor | 3.5-inch (8.9 cm) |
| Hardware Connectivity | SATA 6.0 Gb/s |
| Hardware Platform | PC |
| Hard-Drive Size | 4 TB |
| Item Weight | 1.3 pounds (590 grams) |
| Item Dimensions L x W x Thickness | 5.79"L x 4"W x 1.03"Th (14.7 x 10.2 x 2.6 cm) |
| Number of Items | 1 |
| Unit Count | 1 Count |
| Brand | Western Digital |
| Model Number | WD42PURZ |
| Hard Disk Description | Mechanical Hard Disk |
| Built-In Media | Internal Hard Drive |
| Model Name | Purple HDD |
| Manufacturer | Western Digital Technologies, Inc. |
| Global Trade Identification Number | 00718037887944 |
| UPC | 718037887944 |
| Mfr Part Number | WD42PURZ |
| Installation Type | Internal Hard Drive |
| Color | Purple |
| Enclosure Material | Metal |
| Special Feature | Data Recovery Service |
| Country of Origin | This item will be imported from US |
| Date First Available | April 06, 2022 |
Who Should Buy?
-
Security Systems
Ideal for use in security camera systems, providing reliable storage for surveillance footage with high endurance.
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Home Users
Perfect for home users requiring increased storage capacity for security systems, ensuring vital footage is saved safely.
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Business Use
Recommended for businesses needing a dependable hard drive for continual video recording and data retention for surveillance.
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Gaming Systems
Not suitable for gaming as it is designed for surveillance, lacking the speed and performance gamers require.
Product Description
Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD42PURZ
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Customer Questions & Answers
-
Question:
What is the primary use of the WD Purple 4TB hard drive?
Answer: The WD Purple 4TB hard drive is specifically designed for surveillance systems and is optimized for security camera applications. Its robust design ensures reliable performance when recording video from multiple HD cameras simultaneously, making it ideal for both home and business security setups. -
Question:
What is the significance of a 256 MB cache in this hard drive?
Answer: The 256 MB cache in the WD Purple enhances the drive's data transfer speeds and overall performance. A larger cache allows for quicker access to frequently used data, minimizing delays during read and write operations, which is particularly beneficial when handling high-resolution video streams from multiple cameras. -
Question:
Is the WD Purple hard drive compatible with all DVRs?
Answer: The WD Purple hard drive is compatible with most Digital Video Recorders (DVRs) and Network Video Recorders (NVRs) designed for surveillance applications. To ensure compatibility, check the specifications of your DVR or NVR, focusing on supported storage capacities and drive types. -
Question:
How does the SATA 6 Gbps interface benefit this hard drive?
Answer: The SATA 6 Gbps interface provides a high-speed connection for data transfer, significantly enhancing performance over older SATA versions. This allows the WD Purple hard drive to efficiently handle multiple video streams, delivering timely recordings and smooth playback, essential for maintaining comprehensive surveillance coverage. -
Question:
What types of security systems is the WD Purple drive recommended for?
Answer: The WD Purple drive is recommended for both residential and commercial security systems, including CCTV setups and IP camera networks. Its ability to efficiently store video footage ensures that users can have a reliable surveillance solution whether it’s for monitoring a small home or a large business premises. -
Question:
Can the WD Purple drive operate in high-temperature environments?
Answer: Yes, the WD Purple is designed to function optimally in high-temperature environments typical of surveillance setups. Its advanced features help maintain performance and reliability even in challenging conditions, ensuring uninterrupted recording and recovery of critical data. -
Question:
What is the recommended usage scenario for the WD Purple hard drive?
Answer: This hard drive is best used in scenarios where continuous recording is required, such as in surveillance applications where multiple cameras are monitoring an area. Its design is optimized for 24/7 operation, making it ideal for businesses, warehouses, and homes needing constant monitoring. -
Question:
How does the WD Purple manage data and reduce write amplification?
Answer: The WD Purple employs advanced technologies to manage data effectively and reduce write amplification. This ensures longevity and maintains optimal performance, which is crucial for surveillance tasks that involve constant writing and overwriting of data from video recordings. -
Question:
What format is the WD Purple 4TB drive, and is it upgradable?
Answer: The WD Purple 4TB drive is a 3.5-inch SATA HDD, which can typically be mounted in a variety of compatible DVRs and NVRs. It can also be upgraded based on the user’s storage needs, allowing for flexibility within existing systems to accommodate larger volumes of recorded data. -
Question:
Where can I buy the WD Purple 4TB hard drive in The Bahamas?
Answer: You can purchase the Western Digital 4TB WD Purple Surveillance Internal Hard Drive from Ubuy in The Bahamas. Ubuy offers a variety of options and ensures a seamless shopping experience for your surveillance storage needs.
Western Digital Internal Hard Drives WD42PURZ Editorial Review
Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD42PURZ is a highly recommended solution for surveillance applications, boasting a substantial 4TB digital storage capacity. Users have noted the ease of installation, making it accessible even to those who aren’t tech-savvy. Many have successfully replaced older drives, highlighting its quick setup and reliable performance, especially for continuous recording with security cameras. The drive operates quietly and has shown impressive read/write speeds similar to SSDs. With an emphasis on quality, this product stands out as a durable choice for both personal and business use.
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Pros
- 4TB storage capacity suits extensive recording needs.
- Easily installable, even for non-technical users.
- Reliable performance with continuous recording systems.
- Operates quietly, enhancing user experience.
- Strong read/write speeds comparable to SSDs.
Cons
- Some users reported early signs of failure after short usage.
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Top selling WD Purple Hard Drive in The Bahamas
![Western Digital Purple 3TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD30PURX [Old Version]](https://m.media-amazon.com/images/I/615lgTjpI8L._AC_SY355_.jpg)
Last Updated on August 17, 2026
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Features & Benefits
- Engineered specifically for surveillance
- Improved power efficiency
- AllFrame technology minimizes frame loss
- Supports up to 180 TB/yr workload rate²
- 1-3TB support up to 8 bays; 4TB and above support up to 16 bays
- Tarnish-resistant components for harsher environments.
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