Western Digital Caviar Black 640GB SATA Internal Hard Drive for $49.99 Shipped
Western Digital Caviar Black 640GB SATA Internal Hard Drive for $49.99 shipped. Here is a screenshot for your reference. Alternatively, it is also currently available here for $49.99 shipped (screenshot). The Black Edition has a 5-year warranty and is Western Digital's high-performance product line of SATA drives that usually require a premium. Most places sell this hard drive for over $70.
