Hikvision DS-7764NI-I4 4K NVR

Incoming bandwidth: 256Mbps, Max (up to 64-ch IP video), Outgoing bandwidth: 128pbs, Up to 12 Megapixels resolution recording, Capability: 4-ch @ 4K, or 32-ch @1080P 30FPS ,Support 1-ch HDMI, 1-ch VGA, HMDI at up to 4K(3840x2160) resolution, Up to 4 SATA interfaces, Up to 6TB capacity for each HDD, Third-party network cameras supported, Support dual-os to ensure high reliablility of system running Support various VCA detection alarm and VCA search, Support H.265/H.264/MPEG4 video formats, Alarm In: | 16-ch Alarm Out: 4-ch