Western Digital WD Purple 8TB Surveillance Hard Drive 5400RPM SATA 256MB Cache 3.5"
The WD Purple WD85PURZ is an 8TB surveillance-class hard drive engineered for 24/7 video recording in high-definition security systems. Designed to handle the demands of continuous operation, this drive features AllFrame 4K technology, 256MB cache, and a 180TB/year workload rating to ensure reliable performance in multi-camera NVR and DVR environments.
Engineered for 24/7 Surveillance
WD Purple drives are designed to meet the challenges of continuous video surveillance recording. These drives are engineered specifically for surveillance to help withstand the elevated heat fluctuations and equipment vibrations within NVR environments. Unlike average desktop drives built for short intervals, WD Purple delivers reliable, surveillance-class storage tested for compatibility in a wide range of security systems.
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24/7 Operation: Built for always-on, high-definition security systems
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Up to 64 Cameras: Supports up to 64 single-stream HD cameras
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AllFrame 4K Technology: Reduces frame loss and improves overall video playback
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Enhanced Durability: Tarnish-resistant components for harsh environments
Superior Performance for Surveillance Systems
With a workload rating of up to 180TB per year, the WD Purple WD85PURZ handles up to three times the workload of desktop drives. The drive's 5640 RPM speed and 256MB cache deliver smooth, consistent performance for multi-stream recording applications.
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Workload Rating: 180TB/year for demanding surveillance applications
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Transfer Rate: Up to 215MB/s sustained data transfer
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IntelliSeek Technology: Calculates optimum seek speeds to reduce power consumption and noise
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CMR Recording: Conventional Magnetic Recording for reliable write performance
AllFrame Technology
Exclusive AllFrame technology improves ATA streaming to help reduce frame loss, improve overall video playback, and increase the number of hard drive bays supported within an NVR. WD AllFrame delivers optimizations for write-intensive, low bit-rate, high stream-count workloads typical to mainstream surveillance applications.
Wide Compatibility & Easy Integration
WD Purple hard drives are built with compatibility in mind, tested with leading security system manufacturers to ensure seamless integration. The drive supports hot-swapping capability through SATA, allowing failed drives to be replaced without powering down the system.
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Multi-Bay Support: Supports up to 16 drive bays
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SATA 6Gb/s Interface: Industry-standard connectivity
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Hot Swap Support: Replace drives without system shutdown
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WDDA Support: Western Digital Device Analytics for proactive drive health management
Reliable & Trusted Storage
Western Digital has provided surveillance-grade storage for more than a decade. With WD Purple surveillance storage, drives are engineered for high temperature, always-on surveillance systems so you can rely on quality video when you need it most. Each drive is backed by a 3-year limited warranty.
What's in the Box
- WD Purple 8TB Hard Drive (WD85PURZ)
- Mounting screws
- Quick install guide
Full Specifications
Storage
| Capacity |
8TB |
| Form Factor |
3.5-inch |
| Recording Technology |
CMR (Conventional Magnetic Recording) |
| Advanced Format |
Yes (AF) |
Performance
| Interface |
SATA 6Gb/s |
| Rotational Speed |
5640 RPM |
| Cache Buffer |
256MB |
| Transfer Rate |
Up to 215MB/s |
| Workload Rate |
180TB/year |
Surveillance Features
| Camera Support |
Up to 64 HD single-stream cameras |
| Drive Bays Supported |
Up to 16 bays |
| AllFrame Technology |
AllFrame 4K |
| WDDA |
Western Digital Device Analytics supported |
Power Consumption
| Read/Write |
5.3W |
| Idle |
4.7W |
| Standby/Sleep |
0.4W |
| Operating Voltage |
5V / 12V DC |
Environmental
| Operating Temperature |
0°C to 65°C |
| Non-Operating Temperature |
-40°C to 70°C |
| Operating Shock |
70G (2ms, read/write) |
| Non-Operating Shock |
250G (2ms) |
| Acoustics (Idle) |
24 dBA |
| Acoustics (Seek Average) |
28 dBA |
Physical Dimensions
| Height |
26.1mm (1.028 in.) |
| Width |
101.6mm (4.0 in.) |
| Length |
147mm (5.787 in.) |
| Weight |
0.72kg (1.58 lb.) |
Reliability & Warranty
| MTBF |
1 million hours |
| Warranty |
3-Year Limited Warranty |
| RoHS Compliant |
Yes |
Specifications are sourced from the manufacturer product page and may be updated.
