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WD Red 6TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s 64MB Cache 3.5 Inch - WD60EFRX - Walmart.com
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Western Digital Black WD6002FZWX 6 TB 3.5" Internal Hard Disk Drive (HDD) SATA III 6.0Gb/s 7200 RPM 128 MB | Fast Server Corp. www.srvfast.com
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Western Digital AV-GP WD20EURX 2TB IntelliPower 64MB Cache SATA 6.0Gb/s 3.5" Surveillance Hard Drive - 3 Year Warranty - Walmart.com
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