Amazon.com: Seagate BarraCuda Mobile Hard Drive 4TB SATA 6Gb/s 128MB Cache 2.5-Inch 15mm (ST4000LM024),Mechanical Hard Disk : Electronics
Seagate BarraCuda Pro 4TB Internal Hard Drive Performance HDD – 3.5 Inch SATA 6 Gb/s 7200 RPM 128MB Cache for Computer Desktop PC, Data Recovery (ST4000DM006)
Seagate Guardian BarraCuda ST4000LM024 - hard drive - 4 TB - SATA 6Gb/s - ST4000LM024 - Internal Hard Drives - CDW.com
SEAGATE ST4000LM024 BarraCuda 4TB 2.5 SATA HDD 128MB