WD Purple Surveillance Hard Drive – 8 TB, 128 MB – WD84PURZ

The WD Purple 8 TB Surveillance HDD (model WD84PURZ) is tailor-engineered for 24/7 video surveillance systems. Built with reliability in mind, this SATA III 3.5‑inch drive features AllFrame™ firmware to reduce frame loss and support continuous recording across multiple high-definition streams. Designed for NVR and DVR use, it offers high-capacity storage with optimized endurance and compatibility.

Product Features

Built for Always‑On Surveillance

Rated for continuous video recording workloads—up to 180 TB of writes per year—far exceeding typical desktop drive workloads.

AllFrame™ Technology

Reduces dropped frames and improves playback quality in multi-camera surveillance systems. Supports up to 64 simultaneous HD video streams.

Surveillance-Tuned Durability

Constructed with vibration-resistant and tarnish-resistant components. Features an MTBF rating of up to 1 million hours for long-term reliability.

High-Capacity & Efficient Performance

8 TB storage capacity with a 128 MB cache buffer and a spinning speed around 5,640 RPM, delivering sustained transfer rates up to ~194 MB/s suitable for high-definition video writes.

Broad System Compatibility

Compatible with DVR and NVR platforms in both residential and commercial surveillance installations. Backed by Western Digital’s 3-year limited warranty.

Product Specifications

• Model: WD84PURZ
• Capacity: 8 TB
• Form Factor: 3.5″ SATA HDD
• RPM: Approx. 5,640 RPM
• Interface: SATA III 6 Gb/s
• Cache: 128 MB
• Workload Rating: Up to 180 TB/year
• Supported Camera Streams: Up to 64 single HD streams
• MTBF: Up to 1,000,000 hours
• Features: AllFrame™, RAID error recovery control, vibration-resistant components
• Warranty: 3‑year limited warranty
• Max Sustained Transfer Rate: ~194 MB/s