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Western Digital 8TB WD Purple Pro Surveillance Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 256 MB Cache, 3.5" - WD8001PURP - Walmart.com
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Amazon.com: Western Digital 14TB Ultrastar DC HC530 SATA HDD - 7200 RPM Class, SATA 6 Gb/s, 512MB Cache, 3.5" - WUH721414ALE6L4 : Electronics
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