... ,audio,alarm,realtime DVR, DVR recorder, 4/8/16CH dvr recorder,4/8/16ch newtorkdvr recorder:100/200/400fps, ... With VGAvideo input/output: 4ch/2CH Alarm: 4ch in/1ch outSupport mobile phone viewSupport remote controlSupport 1 SATA port HDD MAX 2000GBPAL ... in4CH composite video input 1.0Vp-p,impedance75Ω,BNCVideo out1ch composite video output,BNC(4 CH)Video display4ch:1/4channelswitchVideo standardPAL,25f ...