Talos Security DRH4044 8-Channel Hybrid HD-SDI DVR 60/120 FPS 1080p 4ch HD + 4ch D1 4TB HDD Hybrid capability combines four HD-SDI and four SD inputs Pentaplex Operations (Simultaneous Live, Recording, Playback, Network, Backup) 3-year limited manufacturer&apos;s warranty Viewer software for smartphone (iPhone/Android) S.M.A.R.T. system health check and HDD recovery