Seagate Guardian BarraCuda ST4000LM024 - hard drive - 4 TB - SATA 6Gb/s - ST4000LM024 - Internal Hard Drives - CDW.com
Seagate BarraCuda Green ST1500DL003 1.5TB 5900 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive Desktop Internal Hard Drives - Newegg.com
Amazon.com: Seagate BarraCuda 4TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache For Computer Desktop PC – Frustration Free Packaging ST4000DMZ04/DM004 : Electronics