WL 3TB 7200RPM 64MB Cache SATA III 6.0Gb/s 3.5" Internal Desktop Hard Drive (For RAID, NAS, DVR, Desktop PC) w/1 Year Warranty Capacity: 3TB Rotation Speed: 7200RPM Buffer Size: 64MB Cache Interface: 3.5" SATA 6.0Gb/s Warranty: 1 Year Warranty from Reseller