Hitachi Ultrastar A7K2000 2TB 3Gb/s SATA 7200RPM 32MB Internal HDD Hard Drive (Certified Refurbished) This Certified Refurbished product is tested & certified by Hitachi to work like-new. The product includes all original accessories, and is backed by a 90 Days warranty Colossal Capacity - 2TB of storage space 3Gb/s SATA interface - 300MB/s burst data rate for faster data access 32MB cache buffer - Enhanced data transfer performance Load/unload ramp -Protects user data when power is removed