WESTERN DIGITAL PURPLE SURVEILLANCE 3.5" 2TB SATA III 5400RPM HARD DRIVE SUPPORTS TRANSFER RATE UP TO 6GBPS

Features:
-Built for wide compatibility
-Equipped with AllFrame technology
-Support up to 64 single-stream HD cameras
-Delivers reliable operation in surveillance systems
-Engineered specifically for mainstream surveillance systems

Specifications:
-Model Number: WD20PURZ
-Formatted capacity: 2TB
-Form Factor: 3.5-inch
-Advanced Format(AF): Yes
-Recording Technology: CMR
-RoHS Compliant: Yes
-Cameras supported: Up to 64
-Drive Bays Supported: 8
-Firmware Feature Name: AllFrame
-Interface transfer rate(max.): 6Gbps
-Host to/from drive(sustained): 145Mbps
-Cache(MB): 64
-Load/unload cycles: 300,000
-Annualized workload rating: 180TB/yr
-MTBF: 1,000,000
-Read/Write: 4.4
-Idle: 4.1
-Standby and Sleep: 0.4

-Weight: 0.45kg
-Dimensions: (L)147 x (W)101.6 x (H)26.1mm

What's in the box:
-1x WD Surveillanc Purple 3.5" 2TB S3 HDD