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File:Western Digital "Red" 4 TB SATA NAS-optimized 3.5-inch HDD.jpg - Wikipedia
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HP 4 TB Hard Drive 3.5 Internal SATA Workstation Device Supported 7200rpm 1 Year Warranty - Office Depot
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Seagate Exos 7E8 ST4000NM000A - hard drive - 4 TB - SATA 6Gb/s - ST4000NM000A - Internal Hard Drives - CDW.com