Compiled specifications
| Parameter | Value |
|---|---|
| Part number | WD84PURZ |
| Density / capacity | 8TB |
| Speed / grade | SATA 6 Gb/s |
| Product line | WD Purple Surveillance Hard Drive |
| Lifecycle | — |
Blank rows are omitted rather than filled with a guess.
The WD84PURZ is a 3.5-inch SATA surveillance hard drive in Western Digital’s WD Purple line, with a formatted capacity of 8TB and 128MB of cache, using CMR recording on a SATA 6 Gb/s interface and AllFrame firmware for DVR/NVR video streams.
Key figures
- Formatted capacity: 8TB; cache: 128MB.
- Form factor: 3.5-inch; interface: SATA 6 Gb/s.
- Recording technology: CMR; firmware: AllFrame.
- Workload rating: 180TB/year; operating temperature 0°C to 65°C.
- Limited warranty: 3 years.
What this document does and does not state
WD84PURZ is one orderable part number in the WD Purple family. The data sheet prints no spindle-speed (RPM) figure for this line, so no RPM is asserted here; sustained transfer rate and an MTBF figure are likewise not asserted on the part page. The data sheet publishes no temperature-grade or qualification standard and no lifecycle statement, so none is claimed.
Data source
Figures are taken from the manufacturer data sheet WD Purple Surveillance Hard Drive — Western Digital Data Sheet (©2025), md5 see digest; Recording Technology=CMR per-code. No public datasheet link is claimed and the external reference points to the manufacturer product page.
Who makes it
The WD84PURZ is made by Western Digital Corporation, a United States–headquartered data storage company based in San Jose, California. © 2025 Western Digital Corporation or its affiliates.
Cross-references & alternatives
A cross-reference here would change what a customer buys. We publish one only when each row carries a source and a date and has been checked by a named reviewer.
- Table shape: Alternative · Fit · Differs in · Source · Checked
- Blocked on: an engineering review step with a named reviewer per row
Official documentation
MemSignal does not host, reproduce or distribute datasheets. Where the manufacturer publishes one, we link to it.
Provenance
- Source: WD Purple Surveillance Hard Drive — Western Digital Data Sheet (©2025), md5 see digest; Recording Technology=CMR per-code
- Checked: 2026-10-28
Cross-reference and substitution advice appear only where each claim carries a source and a date.
Parameters not compiled for this part
- Supply voltage
- Operating temperature
- Typical applications
- Country of origin
Listed so the gap is visible on the page, not inferred later.
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