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Amazon.com: SEAGATE ST4000VX007 Skyhawk 4TB Surveillance Hard SATA 6Gb/s 64MB Cache 3.5-Inch Internal Drive-Frustration Free Packaging (ST4000VXZ07) Mechanical Hard Disk : Electronics
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Seagate ST4000VX007 SkyHawk 4TB Surveillance Hard Drive
Seagate Internal Skyhawk ST4000VX007 4TB HDD Video Surveillance 5900RPM Hard Disk Drive 3.5" SATA 6Gb/s 64MB Security Monitoring