Technical Snapshot

The WD Purple Pro 8TB SATA is a surveillance-grade 3.5" hard disk drive optimized for continuous video recording in security DVR/NVR systems. Spinning at 7,200 RPM with a 256 MB cache buffer, it delivers sustained transfer rates up to 245 MB/s over a SATA 6Gb/s interface. The drive is rated for 550 TB/year workload with a 2,500,000 hours MTBF, backed by WD's storage reliability engineering. With 8TB of raw storage capacity, it supports up to 64 HD camera streams with optimized firmware for sequential write workloads. Part of the WD Purple Pro product line.

Use Case
DVR/NVR surveillance recording, security camera storage
Compatibility
Standard 3.5" drive bay, SATA 6Gb/s interface
Category
Surveillance Hard Disk Drive — WD Purple Pro
WD Purple Pro

Purple Pro 8TB SATA

SATA 6Gb/s · 3.5" · 7,200 RPM · 256 MB · 8TB

Total raw storage capacity of the drive.
Capacity 8TB
Rotational speed of the disk platters. Higher RPM provides faster sequential and random I/O performance.
RPM 7,200
On-drive DRAM buffer for caching frequently accessed data and optimizing read/write operations.
Cache 256 MB
Annual workload rating. Enterprise drives support sustained 24/7 heavy use in server and NAS environments.
Workload 550 TB/year
MPNWD8001PURP
EAN0718037889382
CategoryHard Disk Drives
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Drive Specifications

Form Factor3.5"
InterfaceSATA 6Gb/s
RPM7,200 RPM
Cache256 MB
Sustained Transfer Rate245 MB/s
Workload Rating550 TB/year
MTBF2,500,000 hours
Power (Idle)5.3W
Power (Operating)8.8W

Full Specifications

Data sourced from WD product specifications
Drive
SeriesPurple Pro
Capacity8TB
Form Factor3.5"
InterfaceSATA 6Gb/s
RPM7,200 RPM
Cache256 MB
Performance
Sustained Transfer Rate245 MB/s
Workload Rating550 TB/year
Reliability
MTBF2,500,000 hours
Power (Idle)5.3W
Power (Operating)8.8W
Product
BrandWD
SegmentSurveillance
MPNWD8001PURP
EAN0718037889382
Physical
Package Dimensions14.5 x 10.5 x 2.5 cm

Support & Downloads

WD Purple Pro 8TB SATA Firmware UpdateLatest firmware · Check WD support
WD Support →
WD Purple Pro 8TB SATA DatasheetPDF · Technical specifications
WD Support →
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Frequently Asked Questions

Is the Purple Pro 8TB SATA compatible with my NAS?

Yes, the WD Purple Pro 8TB SATA uses a standard SATA 6Gb/s interface and 3.5" form factor, compatible with any NAS that accepts 3.5" SATA drives. It is widely supported by Synology, QNAP, TrueNAS, and Unraid systems. The 550 TB/year workload rating makes it suitable for always-on NAS environments.

Can I use the Purple Pro 8TB SATA in a RAID array?

The WD Purple Pro 8TB SATA is a surveillance drive. While it can physically work in a RAID array, desktop drives lack the error recovery tuning (TLER/ERC) that RAID controllers expect. For RAID deployments, consider enterprise or NAS-rated drives for better reliability.

What does the 550 TB/year workload rating mean?

The workload rating indicates the maximum annual data transfer the drive supports while maintaining stated reliability. 550 TB/year means the drive supports approximately 1.5 TB of data transfer per day, suitable for continuous recording workloads.

How fast is the Purple Pro 8TB SATA?

The WD Purple Pro 8TB SATA spins at 7,200 RPM with a 256 MB cache buffer, delivering sustained transfer rates up to 245 MB/s. This supports continuous recording at high camera counts.

How much power does the Purple Pro 8TB SATA consume?

The WD Purple Pro 8TB SATA draws 8.8W under operating load and 5.3W at idle.

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Product: WD Purple Pro 8TB SATA
MPN: WD8001PURP
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