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Amazon.com: WD Gold 4TB Enterprise Class Hard Disk Drive - 7200 RPM Class SATA 6 Gb/s 128MB Cache 3.5 Inch - WD4002FYYZ (Renewed) : Electronics
Amazon.com: Dell 4TB 3.5" SATA 6Gb/s 7200 RPM Hard Drive Kit for PowerEdge C6525, R240, R340, R6515, R6525, R740, R7415, R7515, R7525, Storage NX3240 : Electronics