... BNC, 1channel VGA(1280*1024)Audio In/Output8channel RCA /1channel RCAIntercom1 channel RCA in/outputDisplay Picture Division1/4/8/16CHDigital ... CIF@400fpsNTSC:D1@120fps,HD1@240fps,CIF@480fpsRecording QualitySingle channel adjustableRecording ResolutionPAL: D1(704*576),HD1(704*288), ... CIF(352*240)Playback1/4/8/16channel simultaneously(playback channel option)BackupUSB Flash disk ,Movable hard disk, USB ...