Seagate Exos 7E10 4TB 3.5" HDD-T4000-ST4000NM000B Internal Enterprise Hard Drive
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WD Black 4TB Performance Desktop Hard Drive 7200 RPM - Newegg.com
WD RE WD4000FYYZ 4 TB 7,200 rpm SATA 6Gb/s 64MB 3.5" ref HDD - ServerSupply.com
Amazon.com: White Label WL 4TB 7200RPM 64MB Cache SATA 6.0Gb/s (Enterprise Grade) 3.5" Hard Drive (for Server, RAID, NAS, DVR, Desktop PC) w/1 Year Warranty : Electronics
Used Western Digital 4TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD4003FFBX - Walmart.com
Western Digital Gold WD4002FYYZ-01B7CB0 4TB HDD 7200-RPM SATA III 3.5" | eBay
Original Brand 4tb Hard Drive Hdd 7200rpm 64mb Cache Sata Iii 3.5" Desktop Server Monitoring Hard Drive - Servers/workstation Systems & Components - AliExpress
Seagate 4TB 3.5in SATA Hard Drive ST4000NM0033
Amazon.com: Western Digital RE 4TB 7200RPM 64MB Cache SATA 6.0Gb/s 3.5" Enterprise Internal Hard Drive (WD4000FYYZ) OEM : Electronics
Seagate IronWolf Pro 4TB NAS Hard Drive 7200 RPM 256MB Cache CMR SATA 6.0Gb/s 3.5" Internal HDD ST4000NE001 - Walmart.com
Amazon.com: Seagate 4TB 7200RPM HDD : Electronics
Amazon.com: HGST Ultrastar 3.5-Inch 4TB 7200RPM SATA III 6Gbps 64MB Cache Enterprise Hard Drive with 24x7 Duty Cycle (0F14683) (Renewed) : Electronics
Amazon.com: Seagate Enterprise Capacity ST4000NM0024 4TB 7200RPM 128MB Cache SATA 6Gb/s 3.5-inch Internal Hard Drive - 5 Year Warranty (Renewed) : Electronics