WD Black Performance Hard Drive WD5003AZEX - hard drive - 500 GB - SATA 6Gb/s - WD5003AZEX - Internal Hard Drives - CDW.com
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WD Black WD4005FZBX - Hard drive - 4 TB - internal - 3.5-inch - SATA 6Gb/s - 7200 rpm - buffer: 256 MB | Dell USA
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