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Seagate ST500LM000 Laptop Thin 500GB 5400RPM Multi-Level Cell SATA 6Gb/s 8GB NAND Flash 64MB Cache 7mm 2.5-Inch Hybrid Hard Drive

Seagate 9UZ154-500 Momentus XT 500GB 7200RPM SATA 3Gb/s 32MB Cache (CE) 2.5-Inch Hard Drive

HP LU968AT 450GB 15000RPM 3.5-inch SAS 6GB/s Hard Drive

Toshiba MQ01ABF032H 320GB 5400RPM SATA 6Gb/s 32MB Cache 8GB SSD 2.5-Inch Hybrid Hard Drive