... BNCTwo-way Talk1 channel Input, 1 channel Output, BNCDisplayInterface1 HDMI, 1 VGA, 1 TV, 1 Spot, BNCResolution1920×1080, 1280×1024 ... eSATA Device / Internal SATA burner/ NetworkNetworkEthernetRJ-45 port (10/100M/1000M)Network FunctionHTTP, IPv4/IPv6, TCP ... to 16TBAuxiliary InterfaceUSB3 ports (1 Rear), USB2.0RS2321 port, For PC communication & KeyboardRS4851 port, For PTZ controlGeneralPower SupplyAC ...