DG4008HC compression board is a professional digital security product, which adopts the most advanced H.264 video compression algorithm and ADPCM/PCM audio compression technology. One Personal computer can support up to 64 channels video and audio input, parameters of each channel can be set independently and will not affect each other.

Features & Functions :
                   ☉Real-time video and audio compression, no frame lost
                   ☉4CIF preview resolution 
                   ☉Comply with PCI 2.2 standard , a PC can support up to 64 channels
                   ☉Support WINDOWS 2000/XP operating system 
                   ☉Setable video quality and bitrate
                   ☉Setable brightness , contrast , saturation and hue of video signal
                   ☉Support motion detection 
                   ☉Support OSD , LOGO and MASK overlay
                   ☉Support watermark technology
                   ☉Support double encoding

Specifications:

 

Video Format	PAL and NTSC
Video Input	8 Ch   BNC (1.0Vp-p, 75ohm)
Audio Input	8 Ch    BNC (200-2800mV, 30KΩ)
Preview Resolution	Resolution: 704*576(PAL)，704*480(NTSC)
Video Compression	H.264, Support CBR, VBR; Frame: 25F/s(PAL)、30F/s(NTSC) Output：56～400MB/H
Compression Resolution	4CIF：704*576(PAL)、704*480(NTSC) CIF：352*288(PAL)、352*240(NTSC) QCIF：176*144(PAL)、176*120(NTSC)
Audio Compression	PCM/ADPCM
Working Temperature	0℃--＋50℃
Working Humidity	10％--90％
Dimension	175mm*101mm