Western Digital Announced the change in part numbers on their purple Surveillance hard drives.
This part number reflects some internal changes in the product line also
- Annual Workload increased to 180 TB/ Year
- Support Increased to 64 Cameras
- 4TB and Above now support more than 8 Bays
- 4TB and above have now Tarnish-Resistant PCB
| Old Part Number | New Part Number |
| WD30PURX | WD30PURZ |
| WD40PURX | WD40PURZ |
| WD60PURX | WD60PURZ |
| WD80PURZ | WD80PURZ |
| WD100PURZ | WD100PURZ |
