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Refurbished: Seagate Pipeline HD ST3500312CS 500GB 7200 RPM 8MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive - Newegg.com
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Amazon.com: SEAGATE Pipeline HD 500GB 5900RPM 8MB Cache SATA 3.0Gb/s 3.5in Internal Hard Drive - ST3500312CS (for Surveillance System, CCTV DVR) - 3 Year Warranty (Renewed) : Electronics
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