Description Warranty Information Additional Information Description WD Purple 12TB 3.5" SATA Surveillance Internal HDD Capacity: 12TB Interface: SATA Hardisk Rotational Speed: 7200 rpm Form Factor : 3.5 Inch Cache: 256MB View AllClose Warranty Information 1 Month View AllClose Additional Information SIZE: 3.5" TYPE: Internal HDD SERIES: Purple View AllClose