| INTERNAL HARD DRIVE | |
| Model No | WD40PURX |
| Internal HDD Capacity | 4 TB |
| Interface | Sata 6GB/S |
| Cache | 64 MB |
| Internal HDD Type | Surveillance Hard Disk |
| RPM | 5400 |
| Warranty | 3 Years from WD Service Center |
| For More Information | https://www.wdc.com/products/internal-storage/wd-purple-surveillance-hard-drive.html#WD40PURX |