 "WD Red 3TB SATA III 3.5" Hard Drive" Drive - IntelliPower 64MB Cache WD30EFRX | CCL Computers"
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                                Western Digital Red - The new color of NAS.WD Red hard drives are designed and tested for compatibility in the unique 24x7 operating environment and demanding system requirements of home and small office NAS.

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 "WD Blue WD40EZRZ - hard drive 4 TB SATA 6Gb/s" " WD 6Gb/s Internal Desktop Hard Drives CDW.com
"This hard drive offers stunning capacity and ensures your colors never fade." 