Seagate 6TB SkyHawk Surveillance Internal Hard Drive, SATA 6Gb/s

The capacity step for a recorder that must carry more channels or a longer retention window — three times the footage of the 2TB SkyHawk under the same duty rating, again up to 64 HD camera streams.

It records conventionally, so continuous writing does not stall the way a shingled desktop drive does under the same load. For a NAS storing files rather than video, buy the IronWolf class instead.