Western Digital WD Purple Surveillance 4TB 3.5" 5400 RPM SATA
MPN WD40PURZ UPC 718037856773
- Capacity
- 4TB
- Speed
- 5,400 RPM
- Cache
- 64 MB
- Interface
- SATA
- Form factor
- 3.5"
- Recording
- —
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$230.00
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Specifications
Drive
- Capacity
- 4TB
- Form factor
- 3.5"
- Interface
- SATA
- Speed
- 5,400 RPM
- Cache
- 64 MB
Use & reliability
- Made for
- Surveillance
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Full spec sheet from Newegg
- Model/Brand
- WD
- Model/Model
- WD40PURZ
- Model/Series
- Purple
- Features/Usage
- For Video Surveillance
- Model/Packaging
- Bare Drive
- Performance/RPM
- 5400 RPM
- Features/Features
- Capacity up to 18TB. Engineered specifically for surveillance security systems. Tuned for write-intensive, low bit-rate, high stream-count workloads typical to most surveillance applications. 8TB and above have additional enhancements and higher workload rate for AI-enabled recorders, systems and solutions. Supports up to 180 TB/yr workload rate (Up to 360 TB/yr workload rate on 8TB, 10TB, 12TB, 14TB and 18TB drives). Support for more than eight bays. Tarnish-resistant components.
- Performance/Cache
- 64MB
- Performance/Capacity
- 4TB
- Performance/Interface
- SATA 6.0Gb/s
- Dimensions/Form Factor
- 3.5"
- Dimensions/Width (maximum)
- 101.60mm
- Dimensions/Height (maximum)
- 26.10mm
- Dimensions/Length (maximum)
- 147.00mm
- Performance/NAND Flash Memory Type
- Hard Drive
- Additional Information/First Listed on Newegg
- July 24, 2026
