HGST Ultrastar 7K4000 HUS724040ALA640 (0F14688) 4TB 64MB 7200RPM SATA 6Gb/s 3.5in Internal Enterprise Hard Drive (Renewed). Rotation Speed -7200RPM, Interface -SATA 6.0Gb/s, Massive space – 4TB for capacity-optimized enterprise applications.
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