Overview: Capture video by 4 channels input in one card, the maximum display/recording rate is 25fps under PAL format, & 30fps under NTSC format. With 4 channels, this esay capture allows 4 screen display modes. Multi alarm triggering method: video loss, motion, sensor & HDD space shortage. Support schedule recording mode, recycling recording method available.USB 2.0 port, very convenient & easy to use. MPEG4 video compression format. 5 level recording quality options available, & the recording frame rate range from 1 to 30fps adjustable for each channel. Support multi-channel playback, searching by time/date & recording events, images can be Zoom/capture/save/print/backup. Support remote surveillance & 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, 1700MHZHDD:80G, RAM 256M memory Microsoft Direct X 9.0 C Free USB (Universal Serial Bus) 2.0 port & Audio Card Driver CDSpecification: Weight Approx:0.0786kg Size Approx:26.9 2.6 1.5cm Compatible system: Windows 2000, XP/ Vista Package Contents:1 x 4-Channel 4-Input USB (Universal Serial Bus) 2.0 DVR Video Capture Surveillance Dongle 1 x CD, 1 x User Manual 1 x Original Retail Blister