https://wccftech.com/toshiba-announces-6-tb-hdds/

Toshiba has announced its new line of hard drives specifically for surveillance applications. The Toshiba DT02-V series is an energy-efficient line of hard drives that offer capacities of up to 6 TB in size. The DT02-V series of hard drives will offer 2 TB, 4TB, and 6 TB models, which has a speed of 5400 RPM and a 128 MB cache buffer.

The DT02-V hard drives are 3.5-inch along with having a 128 MB cache buffer and uses a SATA 6 GB per second interface. These hard drives are designed for most surveillance systems, being either a digital video recorder (DVR) or a network video recorder (NVR) systems.