WD Purple Pro WD101PURP 10TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive - Newegg.com
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Western Digital 22TB WD Purple Pro Surveillance Internal Hard Drive, SATA 6 Gb/s, 512 MB Cache, 3.5″ – WD221PURP - PLUGnPOINT - The Marketplace
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