Western Digital 4TB WD Purple Surveillance Internal Mechanical Hard Drive HDD - SATA 6 Gb/s, 64 MB Cache, 3.5" - WD40PURZ
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AI Verdict
This 4TB, 5400 RPM mechanical hard drive with AllFrame technology is purpose-built for 24/7 surveillance systems supporting up to 64 HD cameras.
This 4TB mechanical drive is purpose-built for 24/7 surveillance, featuring AllFrame technology and a 180 TB/year workload rating, making it suitable for continuous video recording from up to 64 HD cameras. Its design prioritizes sustained writes and data integrity over raw speed.
If you need faster data access for non-surveillance tasks, look for drives with 7200 RPM or solid-state drives (SSDs).
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Pros
- Engineered for 24/7 continuous operation in security systems.
- AllFrame technology reduces video frame loss during recording.
- Supports up to 64 HD cameras for multi-stream environments.
- Workload rating of up to 180 TB per year.
- Uses CMR (Conventional Magnetic Recording) technology.
- Includes a 3-year manufacturer's limited warranty.
Cons
- The 5400 RPM rotational speed results in slower performance compared to other drive types.
- Can produce noticeable clicking and whirring sounds during operation.
- Reported instances of drives running hot under load.
- Limited compatibility with some specific DVR systems.
- No SATA cable is included in the packaging.
Dimension Scores
The 5400 RPM rotational speed is explicitly noted by users as slow for general computing and gaming.
Engineered for 24/7 operation with a 180 TB/year workload rating and AllFrame technology for data integrity, despite some user reports of early failures.
4TB provides a mid-range capacity suitable for storing continuous video from multiple HD cameras for a reasonable duration.
Designed for compatibility with surveillance systems and DVRs, but some users have reported integration issues with specific setups.
Best For
- Dedicated 24/7 video surveillance systems with multiple HD cameras.
- Network Video Recorders (NVRs) or Digital Video Recorders (DVRs).
- Storing continuous, write-intensive video streams.
- Homelab setups requiring reliable, always-on storage for specific tasks.
Not Recommended For
- Gaming PCs due to slow load times and performance.
- General desktop use requiring fast read/write speeds.
- High-performance data-intensive applications like 4K video editing.
Watch Out For
- Some users reported drives failing within 1 to 2 years of use.
- Customers have received refurbished drives when expecting new ones.
- The warranty process can be lengthy, causing security system downtime.
- Packaging has been described as inadequate, leading to potential shipping damage.
- Loud clicking and whirring noises are reported by users, especially in quiet environments.
Full Specifications
| RAM | 4000 GB |
| ASIN | B071KVB4F8 |
| Brand | WD |
| Color | Purple |
| Series | Purple |
| Voltage | 120 Volts |
| Department | unisex |
| Hard Drive | 4 TB Mechanical Hard Disk |
| Item Weight | 15.8 ounces |
| Manufacturer | Western Digital Bare Drives |
| Wireless Type | 802.11a/b/g/n |
| Special Feature | Data Recovery Service |
| Operating System | Windows/Mac |
| Flash Memory Size | 4 TB |
| Installation Type | Internal Hard Drive |
| Item model number | WD40PURZ |
| Compatible Devices | Desktop |
| Product Dimensions | 5.79 x 4 x 1.03 inches |
| Hard Disk Interface | Serial ATA |
| Hard Drive Interface | Serial ATA |
| Hard Disk Description | Mechanical Hard Disk |
| Hard Disk Form Factor | 3.5 Inches |
| Item Dimensions LxWxH | 5.79 x 4 x 1.03 inches |
| Connectivity Technology | SATA |
| Number of USB 2.0 Ports | 1 |
| Digital Storage Capacity | 4 TB |
| Hard Drive Rotational Speed | 5400 RPM |
| Standing screen display size | 10.5 Inches |
| Is Discontinued By Manufacturer | No |
What Buyers Say
Many users highlight that this drive is specifically designed for surveillance, and trying to use it for anything else, like gaming, results in a frustratingly slow experience. While its 24/7 operation and AllFrame technology are praised for their intended purpose, recurring complaints mention audible noise during operation and concerns about drives running hot. There are also reports of drives failing prematurely within a couple of years, which contradicts its surveillance-grade reliability claims for some users.
“I bought this for my NVR, and it's been recording 8 cameras non-stop for months, but man, sometimes it sounds like a tiny robot is tap-dancing inside my cabinet. Still, no lost footage yet, so I guess it's doing its job.”
Common Praise
- Functions consistently for 24/7 video recording.
- Minimizes frame loss in surveillance footage due to AllFrame technology.
- Handles multiple camera streams without issues.
- Uses CMR technology, which is preferred for sustained writes.
- Provides sufficient storage for mid-size security systems.
Common Complaints
- Produces noticeable clicking and whirring noises.
- Runs hot for some users, potentially affecting longevity.
- Reported failures within 1 to 2 years of purchase.
- Slower performance makes it unsuitable for general PC tasks or gaming.
- Packaging during shipping is often inadequate, leading to damage concerns.
Ownership Tips
- The drive's operational noise can be a factor if installed in a quiet room.
- Performance for non-surveillance tasks is noticeably slower than standard desktop drives.
- Monitoring drive temperature is advisable, as some units reportedly run warm.
- Ensure your DVR/NVR system is compatible to avoid integration headaches.
- You'll need to supply your own SATA data and power cables.
Frequently Asked Questions
Can I use this drive for gaming?
No, its 5400 RPM speed and optimization for surveillance make it too slow for modern games and general PC use.
Does it come with a SATA cable?
No, users report that a SATA cable is not included in the packaging.
Is this drive noisy?
Some users have reported noticeable clicking and whirring sounds, especially during heavy operation.
What is AllFrame technology?
AllFrame technology is a firmware feature that helps reduce video frame loss and improves video capturing in surveillance systems.
What is the warranty period?
It comes with a 3-year manufacturer's limited warranty.
Buying Guide
When you're looking at hard drives for security cameras, you need something that can handle writing data constantly, all day, every day, without dropping frames. This isn't like a drive for your computer games where speed is everything; here, it's about endurance and making sure every second of footage gets saved. You'll also want to consider how many cameras you have and how long you need to keep the recordings.
Capacity (4 TB)
This is how much video footage the drive can store. Think of it like a giant digital shoebox; a 4TB box can hold a lot of video, but more cameras or longer retention times mean you'll fill it up faster.
Interface (SATA 6 Gb/s)
This is the connection type to your recording device. It's a standard connection, like a common USB port, ensuring it'll plug into most modern DVRs or NVRs.
Built for 24/7 surveillance
This means the drive is designed to run continuously, unlike a regular desktop drive that expects to power down. It's like a marathon runner versus a sprinter; it's built for endurance, not bursts of speed.
AllFrame technology
This is a special feature that helps prevent dropped frames in your video recordings. Imagine trying to watch a security video and parts of it are missing; AllFrame tries to keep that from happening, ensuring smoother playback of critical moments.
Alternatives
If you need faster speeds for general computing or gaming, look for internal mechanical drives with 7200 RPM or solid-state drives (SSDs). If you need higher capacity for very long retention periods or many more cameras, consider drives with 6TB, 8TB, or higher.
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