H.264 compressing format, Audio inputs: 4 channels, Video inputs: 16 Cams,Recording Rate: 120 fps(NTSC), 100 fps (PAL), Display: 320x240,640x240,640x480,720x480 De-interlace, supply 4-16 lines input of video, support IE browse, built in web server, Support Win 2000/XP, compreddion format: Wavelet,MPEG-4, GeoMPEG-4. Geovision SOftware 8.0 version.