USB DVR；视频采集卡(图)
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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 |
