... compression ratio4 channel 1080P(25,30)/1080I(50,60)/720P(25,30,50,60) HD-SDI video inputsSupport up to 1080P realtime live ... view4 channel full-HD video realtime compression, max 200fps at ... (VGA) Video Input4 channel, HD-SDI HD video, BNCStandard1080P(25,30)/1080I(50,60)/720P(25,30,50,60)Preview ResolutionMax 1080P(1920×1080 ...