WD Purple Pro 22TB Surveillance Hard Drive — Maximum-Capacity Storage for 64-Channel NVR Builds
Model / Series: WD221PURP
The biggest surveillance drive in the WD Purple Pro line — 22 TB per bay for 64-channel AI recorders holding six months of video.
We don't just ship boxes — this goes in as part of our security camera installation in Chicago work. From the Loop to Rogers Park — see our security work across Chicago.
Specifications
- Brand
- Western Digital
- Model
- WD221PURP
- Series
- WD Purple Pro
- Type
- Pro-tier flagship surveillance-rated hard drive
- Capacity
- 22 TB
- Form Factor
- 3.5-inch SATA
- Interface
- SATA 6 Gb/s
- RPM
- 7,200 RPM
- Cache
- 512 MB
- Workload
- Up to 550 TB/year (Pro-tier)
- Camera Support
- Up to 64+ cameras with AI metadata
- Special Features
- WD AllFrame AI technology + Pro-tier reliability
- MTBF
- 2,500,000 hours
- Warranty
- 5 years
- Operating Temperature
- 0 °C to +65 °C
Best Fit & Recommended For
WD Purple Pro 22TB — Maximum-Capacity Surveillance Drive
The WD Purple Pro 22TB is the maximum-capacity surveillance hard drive in Western Digital’s WD Purple Pro line — featuring AllFrame AI technology, 512 MB cache, 7,200 RPM, 550 TB/year Pro-tier workload, MTBF 2,500,000 hours, 5-year warranty.
The 22 TB Pro capacity is for 64-channel AI NVR builds and any recorder that has to keep 180 days or more — big warehouses, distribution centers, and residential portfolios where the retention policy is measured in months.
When 22 TB Is the Right Capacity
| Scenario | Pairing | Configuration |
|---|---|---|
| 64-channel AI NVR / 90-day | XRN-6420B2 | 8 × 22 TB = 176 TB total (max scale) |
| 32-channel AI NVR / 180-day | XRN-3220B2 | 8 × 22 TB = 176 TB total |
| Warehouse archival retention | X-series + RAID | Multiple 22 TB drives |
| Condo portfolio long retention | X-series | Multiple 22 TB drives |
Where the WD Purple Pro 22TB Fits
- 64-channel AI NVR builds where every drive bay has to count
- Warehouse and distribution centers keeping half a year of footage
- Large condo and apartment portfolios with long retention policies
- Parking structures recording every level around the clock
Local Chicago Coverage
Vidimost installs WD Purple Pro 22 TB drives across the full city of Chicago for maximum-capacity NVR builds.
Recommended NVR Pairings
- Hanwha XRN-6420B2 — 64-channel NVR with 8 HDD bays
- Hanwha XRN-3220B2 — 32-channel NVR with 8 HDD bays
Professional Installation by Vidimost
Vidimost LLC installs WD Purple Pro 22 TB where the retention math doesn’t work any other way — eight bays, 22 TB each, 176 TB total. Full-scope service includes site walkthrough, retention planning, drive sizing per camera load, NVR + RAID configuration, and operator training. Contact us for a free site walkthrough and quote.
Frequently Installed Together
Western Digital
WD Purple 18TB
Pro-tier 18 TB surveillance hard drive rated 550 TB/year — built for AI NVRs that write video plus metadata around the clock.
View →Hanwha Vision
Hanwha XRN-6420B2
Hanwha's biggest NVR — 64 channels, 12th-gen Intel, eight bays up to 80 TB. For camera counts a 32-channel box can't hold.
View →Hanwha Vision
Hanwha XRN-3220B2
32-channel Hanwha NVR with eight drive bays and AI search — one box that runs the whole camera system in a warehouse or high-rise.
View →Seagate
Seagate SkyHawk AI 18TB
18 TB AI-tier surveillance hard drive — 550 TB/yr sustained workload for 32-64 camera NVRs writing 4K video and AI metadata around the clock.
View →