... two processors,ARM9 and DSPl Built in SD slotl 4 channel video inputs;4 channels audio inputsl H.264 baseline profile@Level ... protocols.Technical parametersTypeFS-DVS0404Video input4 channel with BNC socket, composite video, PAL/NTSC(1.0Vp-p, 75Ω)Video compressionH.264 Baseline Profile @ ... /XP/2003Browser: Microsoft Internet Explorer 5.x or above 4ch video server,digital video server,network server,ip ...