Seagate’s 6 TB SkyHawk Surveillance HDD is a 3.5″ SATA III (6 Gb/s) internal drive engineered for 24/7 video recording. With a spacious 6 TB capacity, 256 MB cache, and speeds up to ~180 MB/s, it supports up to 64 HD camera streams with ImagePerfect firmware to prevent dropped frames. Built with rotational-vibration sensors, 1‑million‑hour MTBF, and included Rescue Data Recovery, it's backed by a 3‑year warranty for reliable surveillance storage.