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WD5000AAKX-004EA0 - Western Digital Caviar Blue 500GB 7200RPM SATA 6Gb/s 16MB Cache 3.5-Inch Hard Drive
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Western Digital Caviar Blue WD5000AAKX 500GB 7200RPM 16MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive (Certified used) - 1 Year Warranty - Walmart.com
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WD5000AAKX-60U6AA0-HP - Refurbished - HP / WESTERN DIGITAL 500GB 7.2K RPM SATA III 3.5 INCH LARGE FORM FACTOR LFF WD CAVIAR BLUE 6GB/S SATA316MB CACHE SQ HARD DRIVE - NO TRAY / CADDY
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