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Amazon.com: WD Red 6TB NAS Hard Drive - 5400 RPM Class, SATA 6 Gb/s, 64 MB Cache, 3.5in - WD60EFRX (Renewed) : Electronics
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Amazon.com: Western Digital 6TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 64 MB Cache, 3.5" - WD60EFRX : Electronics
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