Features: *Video input:16 channel,Video out: 2channel; S-Video: 1 channel *Audio input: 4 channel;Audio output: 2 channel *16 alarm input and 1 replay alarm output *Compression: MJPEG *Support Network view and remote surveillance monitoring *Support USB backup *Compatible with NTSC and PAL system *P.T.Z. control via RS485 *Four optional levels of image quality;Configurable Frame Rates for recording *Recording mode: Continuous, Motion Detection, Alarm, time *With motion detection and video loss alarm function *Search Mode: alarm, time, event *Playback Mode: Pause, fast forward, backward *Triplex Operation: monitoring/playback/recording simultaneously *480 fps for view, 120 fps for recording One ATA-100 Hard Disk Interface, support over 200G byt Specification: Standalone 16ch DVR With Remote control, CD-RW, network, PTZ control 16CH Video input(BNC),1 CH Video output, 4CH RCA audio input, 1CH RCA audio output Compression: MJPEG Display resolution: NTSC 720x480 /PAL 704x576 Recording Frame: Display:400fps, Record:50-100fps(PAL), Display:480fps, Record:60-120fps(NTSC) Record mode:Manual/Sensor/Timer/Motion detection, Triplex operation & remote control, network interface: RJ45 PTZ control: Yes Communication Port: RS485 and RS232 Backup: Support 2 IDE HDD and USB, CD-RW(optional)