Seagate BarraCuda 4TB 5400 RPM 3.5" Hard Drives - Newegg.com
BarraCuda Series ST4000DM004 3.5 inch Mechanical Hard Disk SATA Internal HDD 4TB 5400RPM 256MB Cache for PC/ - Walmart.com
Seagate Barracuda 3.5" 4TB (ST400DM004) now using SMR platters with 2TB per platter capacity? | AnandTech Forums: Technology, Hardware, Software, and Deals
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Seagate Barracuda Compute ST4000DM004 4TB 3.5" LFF 6Gbps 5.4K RPM 512 SATA Hard Drive
BarraCuda Series ST4000DM004 3.5 inch Mechanical Hard Disk SATA Internal HDD 4TB 5400RPM 256MB Cache for PC/ - Walmart.com