... detection.7,Backup modes:network backup, USB backup, Two SATA hard disk backup .8,video input: 16-channel BNC.9,video output ... : 16 switch input.13,Alarm output: 1 switch output.14,PTZ control: RS485.15,hard disk interface: 2 SATA interface.16,Network interface ... /100M self-adaptive Ethernet port.17,USB interface: 1 USB2.0 high-speed interface; 1 USB1.1 interface.18,Mobile monitor: Can monitor by ...