Hitachi Desktop A7K2000 HDS722020ALA330 (0F10311) 2TB 32MB Cache 7200RPM SATA 3.0Gb/s Enterprise 3.5" Hard Drive (Certified Refurbished) 2TB Capacity, 7200RPM Rotation Speed, 32MB Cache 3.5" Internal Hard Drive, SATA II 3.0Gb/s Works for PC, Mac, RAID, NAS, CCTV DVR Passed Factory Diagnostic Software + RE-CERTIFIED by State-of-the-Art software - Full "Sector-by-Sector" test to ensure best HDD quality! ZERO Bad Sectors! Worry Free Return! 100% Full Refund