Hikvision DS-7732NXI-K4 32-ch K Series AcuSense NVR, Up to 32-ch IP camera inputs, H.265+ / H.265 / H.264+ / H.264 video formats, Up to 2-ch@12 MP or 3-ch@8 MP or 6-ch@4 MP or 12-ch@1080p decoding capacity, All channels support Motion Detection 2.0, 2-ch video analysis for human and vehicle recognition to reduce false alarm, 1-ch facial recognition for video stream, or 4-ch facial recognition for face picture, Incoming / Outgoing Bandwidth 256 Mbps/160 Mbps, HDMI/VGA independent output, 4 SATA interfaces (Up to 10 TB capacity for each HDD), 100 to 240 VAC, 50 to 60Hz.