Hitachi 2TB - HGST Ultrastar A7K2000 (Certified Refurbished) This Certified Refurbished product is manufacturer refurbished, shows limited or no wear, and includes all original accessories plus a 90-day warranty 2 terabytes of capacity 3Gb/s SATA for configuration flexibility Enhanced Rotational Vibration Safeguard (RVS) for robust performance in multi-drive environments Targeted 1.2 million hours MTBF