Buy Wholesale China 4tb Hdd Internal Hard Drive Disk Sata Iii 256mb Used 500gb 1tb 2tb 4 Tb 2.5" Harddisk For Laptop & Internal Hdd 2.5 at USD 15 | Global Sources
Amazon.com: Seagate BarraCuda 4TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC Laptop (ST4000DM004) : Electronics
Seagate FireCuda ST4000DX005 4TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal HDD Bare Drive Desktop Internal Hard Drives - Newegg.com