Description
| WD Purple™ Surveillance Hard Drives | |
|---|---|
| Model Number | WD40PURX |
| Formatted Capacity | 4TB / 4000GB |
| Form Factor | 3.5-Inch |
| Advanced Format | Yes/s |
| RoHS Compliant | Yes |
| Performance | |
| Data Transfer Rate Max | |
| Buffer to Host | 6 Gb/s |
| Host to/from Drive (sustained) | 150 MB/s |
| Cache (MB) | 64 |
| Performance Class | 5400 RPM Class |
| Reliability/Data Integrity | |
| Load/Unload Cycles | 300,000 |
| Non-recoverable Read Errors Per Bits Read | <1 in 10^14 |
| Power Management | |
| Average Power Requirements (W) | |
| Read/Write | 5.1 |
| Idle | 4.5 |
| Standby/Sleep | 0.4 |
| Environmental Specifications | |
| Temperature (°C) | |
| Operating | 0 to 65 |
| Non-operating | -40 to 70 |
| Shock (Gs) | |
| Operating (2 ms, read/write) | 30 |
| Operating(2 ms, read) | 65 |
| Non-operating (2 ms) | 250 |
| Acoustics (dBA) | |
| Idle | 25 |
| Seek (average) | 26 |
| Physical Dimensions | |
| Height (in/mm) | 1.028/26.1 |
| Length (in/mm) | 5.787/147 |
| Width (in/mm, ± .01 in) | 4/101.6 |
| Weight(lb/kg, ± 10%) | 1.50/0.68 |
