WD Caviar Blue 640 GB 3,5" disco rigido HDD 7200 RPM SATA 3 Gb/s (WD6400AAKS)
The product is pre-owned (second-hand) or has been modified from the original condition as sold by the manufacturer. This 3.5" desktop drive runs at 7200 RPM with 16MB of cache and a SATA 3Gb/s interface.