WD Purple WD30PURX 3TB Surveillance 3.5" Internal Hard Drive

Surveillance Class Hard Drive Storage

Storage Capacity: 3 TB;

Rotational Speed: 5400 rpm;
Maximum External Data Transfer Rate(Interface SATA): 768 MB/s (6 Gbit/s);

Buffer(Cache): 64 MB;

Form Factor: 3.5';

Load/Unload: at least 300,000 Cycles; 

WD manufacturer warranty: 3 year;