Seagate FireCuda 4TB 7200 RPM SATA III 6Gb/s 3.5" Internal CMR Hard Drive - Micro Center
HUS724040ALS641 – Netapp 4TB 7200 RPM SAS 3.5″ HDD for E-Series 12 bay DE1600, E2612, E2712, E5412, E5512, E5612 DA and FDE enabled – Disk Drive Finder
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WD 4TB Desktop Performance 7200 rpm SATA III 3.5" WD4005FZBX B&H
HGST HUS726T4TALE6L4 Ultrastar 4TB 7200 RPM 512e SATA 6Gb/s 3.5-Inch Internal Hard Disk Drive
WD Red Pro 4TB 7200 RPM 3.5" Internal Hard Drive - Newegg.com
Seagate FireCuda 4TB 7200 RPM SATA III 6Gb/s 3.5" Internal CMR Hard Drive - Micro Center
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HGST Deskstar 3.5-Inch 4TB 7200 RPM SATA III 6Gbps 64MB Cache (0F14681) | eBay
HGST 4TB 3.5" SATA3 HDD-T4TB-HUS726T4TALE6L4 Internal Enterprise Hard Drive
HP 4TB Server Hard Drive | 693721-001
WD Red Pro 4TB 7200 RPM 3.5" Internal Hard Drive - Newegg.com
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HGST Deskstar NAS 3.5" 4TB 7200 RPM 64MB Cache SATA 6.0Gb/s High-Performance Hard Drive for Desktop NAS Systems Retail Packaging - Newegg.com
STMFSND2CLAR4000 – Data Domain 4TB 7200 RPM SAS 3.5″ HDD for Data Domain ES30 15 bay enclosures – Disk Drive Finder
Western Digital RE WD4000FYYZ 4TB 7200 RPM 64MB 6Gb/s 3.5" SATA Hard D
Western Digital RE WD4000FYYZ 4TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Enterprise Internal Hard Drive - w/3 Years Warranty - Walmart.com
HP 4TB 7200 rpm SAS-2 3.5" Internal SC Midline Hard 695510-B21
Western Digital RE WD4000FYYZ 4TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Enterprise Internal Hard Drive - w/3 Years Warranty - Walmart.com
Amazon.com: WD 4TB 7200 RPM SATA 6 Gb/s 64MB Cache, 3.5-Inch Desktop Hard Disk Drive (WD4003FZEX) : Electronics
Seagate Enterprise Capacity 3.5'' HDD 4TB 7200 RPM 512e SATA 6Gb/s 128MB Cache Internal Hard Drive ST4000NM0115 - Newegg.com
ST4000NM0023 Seagate 4TB 3.5 inch SAS Server Enterprise Hard Drive
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Amazon.com: Seagate Enterprise 4TB Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM, 256MB Cache (ST4000NM004C) : Electronics
NeweggBusiness - Toshiba X300 4TB Performance Desktop and Gaming Hard Drive 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5 Inch Internal Hard Drive Retail Packaging HDWE140XZSTA