Western Digital 4TB Purple Surveillance HDD

Idle Mode: 25 (dBA)7

Buffer size: 64 MB

Interface type: SATA 6 Gb/s

Rotational speed: IntelliPower *

Seek Mode 0: 26 (dBA)7

Capacity (GB): 4000 GB

Internal or External: Internal

Capacity (GB): 4000 GB

Warranty: 2 Years