Western Digital WD Purple 12TB 7200RPM 3.5 Inch SATA Surveillance Desktop Internal HDD :
Overview :
The Western Digital WD Purple 12TB 7200RPM 3.5 Inch SATA Surveillance Desktop Internal HDD is engineered specifically for professional security systems that run 24/7. Designed to handle high-capacity workloads, Western Digital WD Purple 12TB 7200RPM 3.5 Inch SATA Surveillance Desktop Internal HDD ensures smooth, uninterrupted video recording across multiple HD cameras. With advanced All Frame AI firmware, Western Digital WD Purple 12TB 7200RPM 3.5 Inch SATA Surveillance Desktop Internal HDD reduces frame loss, improves video playback integrity, and supports AI-driven analytics, making it ideal for modern surveillance setups.
Key Features :
Purpose-built for 24/7 surveillance applications.
All Frame AI technology reduces frame drops and improves video stream accuracy.
Supports up to 64 HD cameras for large-scale setups.
High 360TB/year workload rating for continuous write-heavy environments.
7200 RPM class performance for faster data handling and smoother recording.
256MB cache helps improve overall speed and responsiveness.
HelioSeal technology ensures long-term durability and efficient operation.
IntelliSeek reduces noise, vibration, and power usage.
Tarnish-resistant components improve longevity in demanding environments.
Ideal for NVRs, DVRs, AI-enabled security systems, and multi-bay enclosures.
Specifications Table :
| Model Number | WD121PURZ |
| Capacity | 12TB |
| Series | WD Purple Surveillance HDD |
| Form Factor | 3.5 Inch |
| Interface | SATA III (6Gb/s) |
| RPM Class | 7200 RPM |
| Cache Memory | 256MB |
| Sustained Data Rate | Up to ~245 MB/s |
| Workload Rate | 360TB per year |
| Supported Cameras | Up to 64 HD Cameras |
| AI Stream Support | Up to 32 AI streams |
| MTBF | 1.5 Million Hours |
| Non-Recoverable Error Rate | < 1 in 10¹⁵ |
| Load/Unload Cycles | 300,000 cycles |
| Operating Temperature | 0°C to 65°C |
| Non-Operating Temperature | –40°C to 70°C |
| Shock (Operating) | 30G (2 ms) |
| Shock (Non-Operating) | 250G (2 ms) |
| Typical Power Use (Active) | ~6.6W |
| Typical Power Use (Idle) | ~5.6W |
| Standby/Sleep | ~0.6W |
| Technology | HelioSeal, IntelliSeek, All Frame AI |
| Warranty | 3-Year Limited Warranty |
