Function: 4-Channel 4-Input USB 2.0 DVR Video Capture 4 channels video input in one card, the maximum display/recording rate is 25fps under PAL format, and 30fps under NTSC format. 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 30fps 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/Vista, Intel P4 CPU, 1700MHZ - HDD: 80G, RAM 256M memory - Microsoft DirectX 9.0C - Free USB 2.0 port and Audio Card Color: Black Dimensions: 89 x 27 x 15 mm Approved: CE / FCC