Seagate SkyHawk 6TB Surveillance Hard Drive - SATA 6Gb/s 64MB Cache 3.5-Inch Internal Drive (ST6000VX0023)
Amazon.com: Seagate Skyhawk 6TB Surveillance Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 256MB Cache for DVR NVR Security Camera System with Drive Health Management (ST6000VX0023) : Electronics
Best Buy: WD Blue 6TB Internal SATA Hard Drive for Desktops WD60EZRZ
Amazon.com: Seagate Enterprise Capacity 3.5 HDD 6TB 7200 RPM 512e SATA 6Gb/s 128MB-Cache 3.5-Inch Hard Disk Drive - ST6000NM0024 (Renewed) : Electronics
Amazon.com: Seagate BarraCuda 6TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC – Frustration Free Packaging (ST6000DMZ03) : Electronics
Amazon.com: Western Digital 6TB WD Blue PC Internal Hard Drive - 5400 RPM Class, SATA 6 Gb/s, 64 MB Cache, 3.5" - WD60EZRZ : Electronics
6TB Hard Drive WD Purple for SATA audio/video - Oomipood
P00JM Dell 6TB 7.2K 6G 3.5IN SATA Hard Drive
Dell 6TB 7.2K RPM SATA 3.5 Inch 6Gb/s Hard Drive - P00JM - VRLA Tech