Hikvision DS-9664NXI-I8/S 64 Channel AcuSense NVR, Intelligent analytics based on deep learning algorithm, Up to 4-ch perimeter protection, Up to 4-ch facial recognition for video stream, or up to 8-ch facial recognition for face picture, Incoming Bandwidth: 384 Mbps, Outgoing Bandwidth: 256 Mbps, Up to 8-ch IP speakers can be connected, Motion Detection 2.0 on all channel, HDMI1/VGA1 simultaneous output, HDMI2/VGA2 simultaneous output, HDMI1/HDMI2 independent output, Support ANPR Cameras attributes, RAID0, RAID1, RAID5, RAID6, RAID10 Support global hot spare, 8 SATA interfaces, 100 to 240 VAC, 50 to 60 Hz, ≤ 30 W (without HDD).