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Amazon.com: Seagate IronWolf 4TB NAS Internal Hard Drive HDD – CMR 3.5 Inch SATA 6Gb/s 5400 RPM 64MB Cache for RAID Network Attached Storage, Rescue Services Frustration Free Packaging (ST4000VNZ06) : Electronics
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Amazon.com: Seagate 4TB IronWolf NAS SATA Hard Drive 6Gb/s 256MB Cache 3.5-Inch Internal Hard Drive for NAS Servers, Personal Cloud Storage (ST4000VN008), Silver : Electronics
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