Seagate SkyHawk AI Surveillance 16TB SATA 6Gb/s CMR Helium 3.5"

Seagate Skyhawk AI 20TB SATA 6Gb/s 7200 RPM 3.5"

Seagate Part# ST20000VE002

Hard Drives - Internal – Hard Drive - 256 MB Buffer - No Wireless LAN - SkyHawk AI - SATA - SATA/600 - Internal - 3.5" Form Factor - Network Video Recorder - 20 TB Storage Capacity - Conventional Magnetic Recording (CMR) - 1" ...