WD Ultrastar DC HC310 HUS726T6TAL5204 - hard drive - 6 TB - SAS 12Gb/s - 0B36047 - Internal Hard Drives - CDW.com
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WD Ultrastar DC HC310 HUS726T4TALA6L4 - hard drive - 4 TB - SATA 6Gb/s - 0B35950 - Internal Hard Drives - CDW.com
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