Specification:

4 channels video input in one card, the maximum display/recording rate is 25 fps under PAL format, and 30 fps under NTSC format. 
        1 channel audio input. 
        4 screen display modes are available. 
        Multi alarm triggering method: sensor, motion, video loss, and HDD space shortage. 
       Support schedule recording mode, recycling recording method available. 
        MPEG4 video compression format. 5 level recording quality options available, and the recording frame rate range from 1 to 30 fps adjustable for each channel. 
      Support multi-channel playback, searching by time/date and recording events, images can be zoom/capture/save/print/backup. 
        Support remote surveillance and PTZ control through web browser, support dynamic domain name 
        Configurable auto reboot function for preventing PC deadlock.

System Requirements:

Windows 2000/XP or better
CPU: Intel P4 Celeron processor，minimum 1700MHz
Motherboard : Intel 845/865/915 series
HDD : 80G or better
RAM : 256M memory or better
VGA : GeForce2，GeForce4，FX5200，ATI Rage128
Microsoft DirectX 9.0C
Free USB 2.0 port
True Color VGA Card