professional USB dvr with 4CH display have design patent
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USB dvr, USB dvr capture, usb dvr adapter
4channels input, usb output
Mine was built in 2004, which was identified as a Hi-tech enterprise by Shenzhen science and teachnology burea, which specialized in R&D manufacturing and marketing for production of audio video signal equipments
USB2.0 4 channels DVR capture
4 channels video input in one card, the maximum display/recording rate is 25 fps under PAL format, and 30 fps under NTSC format.
4 screen display modes are available
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
Remote playback function
Input:BNC A/V output:4 Ch; Video output:VGA video output; Compression format:MPEG4
Record/Display rate:25fps(PAL) 30fps(NTSC0
welcome to contact us anytime.