| Model | WD121PURP |
| Formatted capacity | 12TB |
| Form factor | 3.5-inch |
| Advanced Format (AF) | Yes |
| Recording technology | CMR |
| RoHS compliant | Yes |
| Product Features | |
| Cameras supported | Up to 64 HD |
| AI streams | 32 |
| Firmware feature name | AllFrame AI |
| Tarnish resistant components | Yes |
| Performance | |
|
Interface transfer rate (max) Buffer to host Host to/from drive (sustained) |
6 Gb/s 245 MB/s |
| Cache (MB) | 256 |
| RPM | 7200 |
| Reliability/Data Entigrity | |
| Load/unload cycles | 600,000 |
| Annualized workload rating | Up to 550 TB/year |
| Non-recoverable read errors per bits read | <1 in 10^15 |
| MTBF | 2,500,000 |
| Limited Warranty (years) | 5 |
| Power Management | |
|
Average power requirements (W) Read/write Idle Standby and sleep |
6.6 5.6 0.6 |
| Environmental specifications | |
|
Temperature Operating Non-operating |
0 °C to 65 °C -40 °C to 70 °C |
|
Shock (Gs) Operating Operating Non-operating |
30 65 250 |
|
Acoustics (dBA) Idle Seek (average |
20 29 |
| Physical Dimensions | |
| Height (in/mm, max) | 1.028/26.1 |
| Length (in/mm, max) | 5.787/147 |
| Width (in/mm, ± .01in) | 4/101.6 |
| Weight (lb/kg, ± 3%) | 1.46/0.66 |