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Amazon.com: 500 GB 500GB 2.5 Inch Sata Laptop Internal Hard Drive 5400 RPM for Laptop/Mac/PS3 (500 GB) : Electronics
Amazon.com: Western Digital AV 500GB 8MB Cache SATA2 3.5" Hard Drive (for CCTV DVR, cool, quiet &reliable) -w/ 1 Year Warranty : Electronics
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Amazon.com: Seagate ST500LM021 Laptop Thin SATA III 7mm 500GB 2.5-Inch HDD Hard Drive : Electronics
Amazon.com: Seagate Barracuda ST500DM002 500 GB 3.5 Internal Hard Drive - SATA - 7200 rpm - : Electronics
Amazon.com: WD Blue 500GB Desktop Hard Disk Drive - 7200 RPM Class SATA 6Gb/s 32MB Cache 3.5 Inch - WD5000AZLX : Electronics
Amazon.com: HP 500GB 7200RPM 3.5 SATA Hard Drive 658083-001 : Electronics
Amazon.com: Western Digital WD AV-GP 500GB 32MB Cache SATA 3.0Gb/s 3.5inch (CCTV DVR, PC) Internal Hard Drive (Low power, Quiet) -w/1 Year Warranty : Electronics