... video capture board,dvr card,video capture card EasyCAP002 4 CHANNEL USB 2.0 DVR is the safety system of ... fps under NTSC format for Per channel.. * 1 channel audio input. * 4 screen display modes are available. * Multi alarm triggering method: sensor, motion ... rate range from 1 to 30 fps adjustable for each channel. * Support multi-channel playback, searching by time/date and recording events, images ...