| Appointment | video systems |
| HDD capacity | 3 TB |
| Cache memory capacity | 256 MB |
| Spindle rotation speed | 5400 RPM |
| Type | Hard disk |
| Model | WD Purple Surveillance |
| Weight | 570 g |
| Manufacturer code | [WD34PURZ] |
| Width | 101.6 mm |
| Thickness | 26.1 mm |
| Length | 147 mm |
| Maximum data transfer rate | 175 Mbyte/sec |
| Interface | SATA III |
| Interface bandwidth | 6 Gbit/s |
| Optimization for RAID arrays | Yes |
| Recording technology | CMR |
| Impact resistance during operation | 65 G |
| Noise level during operation | 27 dBa |
| Noise level in idle | 23 dB |
| With helium filling | No |
| Number of positioning-parking cycles | 300000 |
| Maximum power consumption | 4.6 W |
| Standby power consumption | 3.7 W |
| Maximum operating temperature | 65 °C |
