WD Purple drive.
Features:
| GENERAL | |
| Formatted capacity | 8TB |
| Form factor | 3.5-inch |
| Advanced Format (AF) | Yes |
| Recording Technology | CMR |
| RoHS compliant | Yes |
| PRODUCT FEATURES | |
| Cameras supported | Up to 64 HD |
| Drive Bays Supported | 16 |
| Al Streams | 16 |
| Firmware Feature Name | AllFrame |
| Tarnish resistant components | Yes |
| PERFORMANCE | |
| Interface transfer rate (max) | |
| Buffer to host | 6 Gb/s |
| Host to/from drive (sustained) | 194 MB/s |
| Cache (MB) | 128 |
| RELIABILITY / DATA INTEGRITY | |
| Load/unload cycles | 300,000 |
| Annualized workload rating | 180TB/yr |
| Non-recoverable read errors per bits read | <1 in 10^14 |
| MTBF | 1,000,000 |
| Limited warranty (years) | 3 |
| POWER MANAGEMENT | |
| Average power requirements (W) | |
| Read/Write | 6.2 |
| Idle | 5.5 |
| Standby and Sleep | 0.4 |
| ENVIRONMENTAL SPECIFICATIONS | |
| Temperature (°C, on the base casting) | |
| 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 |
| Average Seek | 30 |
| PHYSICAL DIMENSIONS | |
| Height (in./mm, max) | 1.028/26.1 |
| Length (in./mm, max) | 5.787/147 |
| Width (in./mm, ± .01 in.) | 4/101.6 |
| Weight (lb/kg, ± 10%) | 1.58/0.72 |