DVR with VGA,4-channel, H.264 2 channel alarm input, 1 channel alarm output DVR Details:1. H.264 Compression2. Adjustable 5-level ... remote control, network 7. USB interfaces 8.4 channel playback or single channel playback 9. Support LAN, WAN, ADSL 10. ... -p/75 ohm, VGA x 1Audio Input2 Channel, RCAAudio Output2 Channel, RCAAlarm Input2 Channel, Trigger closed without VoltageOpen or ClosedAlarm Output1 ...