![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 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](https://m.media-amazon.com/images/I/818Zr2FoBWL.jpg)
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
![BarraCuda 4TB 2.5" Internal Laptop Hard Drive, 5400 RPM, SATA 6Gb/s, Up to 140MB/s Data Transfer Rat ST4000LM024 BarraCuda 4TB 2.5" Internal Laptop Hard Drive, 5400 RPM, SATA 6Gb/s, Up to 140MB/s Data Transfer Rat ST4000LM024](https://www.adorama.com/images/Large/SEST4000LM24.jpg)
BarraCuda 4TB 2.5" Internal Laptop Hard Drive, 5400 RPM, SATA 6Gb/s, Up to 140MB/s Data Transfer Rat ST4000LM024
![Amazon.com: Seagate ST4000DM000 Desktop Hdd 4TB Sata 6GB/s Ncq 64MB Cache 3.5in Internal Bare Drive (Renewed) : Electronics Amazon.com: Seagate ST4000DM000 Desktop Hdd 4TB Sata 6GB/s Ncq 64MB Cache 3.5in Internal Bare Drive (Renewed) : Electronics](https://m.media-amazon.com/images/I/61crIIjvi-L._AC_UF894,1000_QL80_.jpg)
Amazon.com: Seagate ST4000DM000 Desktop Hdd 4TB Sata 6GB/s Ncq 64MB Cache 3.5in Internal Bare Drive (Renewed) : Electronics
![Seagate Desktop HDD ST4000DM000 4TB 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive - Newegg.com Seagate Desktop HDD ST4000DM000 4TB 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive - Newegg.com](https://c1.neweggimages.com/ProductImage/22-178-338-09.jpg)
Seagate Desktop HDD ST4000DM000 4TB 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive - Newegg.com
![Amazon.com: Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD42PURZ : Electronics Amazon.com: Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD42PURZ : Electronics](https://m.media-amazon.com/images/I/71KGby9PZkL.jpg)
Amazon.com: Western Digital 4TB WD Purple Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 256 MB Cache, 3.5" - WD42PURZ : Electronics
Seagate Barracuda ST4000DM004 - hard drive - 4 TB - SATA 6Gb/s - ST4000DM004 - Internal Hard Drives - CDW.com
![Amazon.com: Seagate BarraCuda Mobile Hard Drive 4TB SATA 6Gb/s 128MB Cache 2.5-Inch 15mm (ST4000LM024),Mechanical Hard Disk : Electronics Amazon.com: Seagate BarraCuda Mobile Hard Drive 4TB SATA 6Gb/s 128MB Cache 2.5-Inch 15mm (ST4000LM024),Mechanical Hard Disk : Electronics](https://m.media-amazon.com/images/I/91sYOMJwKqL.jpg)
Amazon.com: Seagate BarraCuda Mobile Hard Drive 4TB SATA 6Gb/s 128MB Cache 2.5-Inch 15mm (ST4000LM024),Mechanical Hard Disk : Electronics
![Amazon.com: Seagate Enterprise 4TB Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM, 256MB Cache (ST4000NM004C) : Electronics Amazon.com: Seagate Enterprise 4TB Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM, 256MB Cache (ST4000NM004C) : Electronics](https://m.media-amazon.com/images/I/81lf45BvHdL.jpg)
Amazon.com: Seagate Enterprise 4TB Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM, 256MB Cache (ST4000NM004C) : Electronics
![Amazon.com: Western Digital Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - Western Digital40PURZ [Old Version] : Electronics Amazon.com: Western Digital Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - Western Digital40PURZ [Old Version] : Electronics](https://m.media-amazon.com/images/I/41azQ9rlX+L._AC_.jpg)
Amazon.com: Western Digital Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - Western Digital40PURZ [Old Version] : Electronics
![Amazon.com: WD40EZRX Western Digital 4TB Internal Hard Drive IntelliPower 64MB Cache SATA 6.0Gb : Electronics Amazon.com: WD40EZRX Western Digital 4TB Internal Hard Drive IntelliPower 64MB Cache SATA 6.0Gb : Electronics](https://m.media-amazon.com/images/I/81py5g+it9L.jpg)