WD Purple Pro HDD Spec and Price in the United States
Purple Pro is the enterprise surveillance drive: 7200rpm at every capacity, a 512MB cache, and a five-year warranty with a 550TB/year workload rating — WD's top-end camera-array spec, per the product brief. Where the base Purple handles a few streams, Purple Pro is rated for AI-capable NVRs and large camera counts, with sustained throughput up to 267 MB/s. The distinction from the base line is endurance and warranty, and the price difference tracks it.
Prices exclude sales tax.
The last tracked price for the 12TB WD Purple Pro HDD in the United States was $529.99 at Amazon.com, captured 2026-10-12. Across 2 tracked merchants and 874 days of recorded prices, the 90-day median for the 12TB WD Purple Pro HDD is $639.30 and the lowest recorded price is $220.00. This site began capturing prices on July 30, 2026; for Amazon listings, prices dated earlier come from Keepa's price history.
Captured periodically and may have changed.
- 12TB
- 22TB
Each point is one day's recorded price, not a list price. Points dated before July 30, 2026, when this site began capturing prices, come from Keepa's Amazon price history. How we track prices
Specifications
- Capacity
- 12TB
- Interface
- SATA
- Sequential read
- 267 MB/s
- Sequential write
- 267 MB/s
- Rotation speed
- 7200 RPM
- Form factor
- 3.5-inch
- Cache
- 512 MB
- Warranty
- 5 years
Capacities
| Configuration | Part number | Rotation speed | Cache | Current best price |
|---|---|---|---|---|
| 12TB | WD122PURP | 7200 RPM | 512 MB | $529.99 Price too old to confirm |
| 22TB | WD221PURP | 7200 RPM | 512 MB | $1,179.99 Price too old to confirm |
What owners and reviewers say
Summarised from 2 source(s), reviewed September 13, 2026. A source is counted only where it names this model exactly. How we track prices
Commonly praised
- Made for surveillance and broadly comparable to the top pick, with twice the cache at the same capacity.
- Shares much of the design and feature set of the enterprise line.
- Owners deploying them in surveillance and NVR systems report reliable, trouble-free operation.
- Owners consider them good value for the capacity, citing capacity and speed.
- Packaging and shipping are repeatedly praised.
Commonly criticised
- Loses out to a rival with an included data-recovery plan, and has a lower sustained transfer rate than the enterprise drive it shares characteristics with.
- Several owners find the drive loud while writing, noisier than the drives it replaced.
- One owner reports a unit that damaged a motherboard and had to go through warranty replacement.
Sources behind this summary
- Newegg — 5 out of 5 (22 ratings), as of September 15, 2026
- Tom's Hardware
Guides for this category
Sources
Every spec above was pulled from one of these — a field a source didn't state was left off rather than estimated.