High Speed RecordingSimultaneous Recording up to 16 Cameras using 1 card for every 4 camerasMulti-Mode Display ScreenHigh Speed Playback SearchAutomatic Detection Recording Remote On-line Viewing and Playback via LAN, WAN, PSTN, ISDN, Internet with web browserEmergency Automatic DisplayAlarm I/O interfaceDual Display for Live and PlaybackOne-channel Audio Input / RecordingPan / Tilt / Zoom ControlReal-Time Digital Video CompressionMPEG-4 Data Compressing FormatDisplay Speed Resource: PAL: 30fps / NTSC: 25fpsFull Resolution Video Real Time Display: PAL: 768x576 / NTSC: 640x480One Audio ChannelVisual Signal Input: 4 channel BNC PCI Controller Card easy to installSupport Color / Black & White CamerasSupport Windows 98 / ME / 2000 / XPSupport up to 4 cards and 16 Cameras on One PCData Compressing Format: MPEG-4Display Speed Resource: 25 FramesNetwork Connection: PSTN ISDN ADSLPC Requirement: PIII500/128M/40GSoftware Supports: Supports all Windows 98/SE/ME/2000/XP producing area:China supplying capacity:50,000pcs