Hikvision 32-Channel High End Embedded NVR (DS-7732NI-I4) - IP Video Input: Up to 12 MP resolution, Incoming Bandwidth: 256 Mbps, Outgoing Bandwidth: 256 Mbps, Connectivity: HDMI 1 Output, HDMI 2 Output, VGA Output, Video Output Mode, CVBS Output, Audio Output, Two-Way Audio, Network Interface: 2 RJ-45 10/100/1000 Mbps self-adaptive Ethernet interfaces, Serial Interface: 1 RS-485 (half-duplex), 1 RS-232, SATA: 4 SATA interfaces, Alarm In/Out: 16/4, USB Interface: Front panel: 2 × USB 2.0; Rear panel: 1 × USB 3.0, Chassis: 19-inch rack-mounted 1.5U chassis