Seagate BarraCuda 500GB Internal Hard Drive HDD – 2.5 Inch SATA 6 Gb/s 5400 RPM 128MB Cache for PC Laptop (ST500LM030) - Walmart.com
Seagate BarraCuda 7200.10 ST3500630AS 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Hard Drive (Perpendicular Recording) Bare Drive - Newegg.com
Amazon.com: Seagate BarraCuda Pro 500GB Internal Hard Drive Performance HDD – 2.5 Inch SATA 6Gb/s 7200 RPM 128MB Cache for Computer Desktop PC Laptop, Data Recovery – Frustration Free Packaging (ST500LM034) : Electronics
Amazon.com: (Old Model) Seagate 500GB Desktop HDD Sata 6Gb/s 16MB Cache 3.5-Inch Internal Bare Drive (ST500DM002) : Electronics