Seagate SkyHawk Surveillance HDD ST6000VX001 Hard drive 6 TB internal 3.5" SATA 6Gb/s buffer: 256 MB

Built for surveillance DVR and NVR security camera systems, SkyHawk delivers 6 TB of surveillance-optimised storage Support workloads of up to 180 TB/year — that's 64 simultaneously streaming HD cameras with zero dropped frames Built-in RV sensors allow drives to maintain performance in multi-bay systems, offering the flexibility to scale systems when more storage is needed