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Seagate Momentus 7200.5 640GB 7200RPM SATA II 3Gb/s 16MB Cache 2.5" 9.5mm Laptop Hard Drive - ST9640421AS (SED) - Drive Solutions
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Seagate Momentus 5400 ST9640320AS 640GB 5400 RPM 8MB Cache SATA 3.0Gb/s 2.5" Internal Notebook Hard Drive Bare Drive - Newegg.com
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