... fast. 1,4 Channel H.264 DVR2.H.264 compression:Highly improves video quality for live,recording,and network,high stability.3.Display ... OSD interface,Lower bit rate required for fastest network transfer5.CH Video input,1CH Video output;1ch audio-in,1ch audio-out6. ... Multiplex:Allows live display, record, playback, backup and network operation ...