... : 60 min.), Pre-record: 1~30 sec., Post-record: 10~300 sec.Video Detection & AlarmTrigger EventsRecording, PTZ movement, Tour, ... HDD / USB CD/DVD-RW / Network downloadNetworkEthernetRJ-45 port (10/100/1000M)Network FunctionsHTTP, TCP/IP, UPNP, RTSP, UDP, ... .8kg (Exclude HDD) 8ch stand alone DVR with H.264 dual-stream video compression,4Channel D1+4Channel CIF real-time preview,support DVD-RM function ...