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Seagate ST3500418AS Barracuda 500GB 7.2k RPM SATA 3.5-Inch HDD Hard Disk Drive
Seagate Barracuda ST3500418AS 500GB 16MB Cache 7200RPM SATA2 Hard Drive - New w/ 3-yr warranty
Seagate BarraCuda 7200.12 ST3500418AS 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive - Newegg.com