Seagate Barracuda 500GB ST500DM002 7200RPM SATA 3.5" Desktop Internal Hard Drive 763649032046 | eBay
Amazon.com: Seagate BarraCuda 500GB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 7200 RPM 32MB Cache for Computer Desktop PC (ST500DM009) : Electronics