... Detection, camera blank, video loss Easy backup: USB devices, DVD-RW, network download Built-in web server, Support CMS, NAT ... default: 60 min.), Pre-record: 1~30 sec., Post-record: 10~300 sec.Video Detection & AlarmTrigger EventsRecording, PTZ movement, Tour, ... ModeFlash drive / USB HDD / USB CD/DVD-RW / Network downloadNetworkEthernetRJ-45 port (10/100/1000M)Network FunctionsHTTP, TCP/IP, UPNP, ...