Video Input:4 Channels      Audio Input:2 Channels     Max Number In single System: 1PCS
 Recording Rate: 25 f/s(PAL),30 f/s(NTSC)
 Compression format:MPEG4
 System Support: Windows 2000/Server 2003/XP/Vista
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 Video Input:4 Channels      Audio Input:2 Channels     Max Number In single System: 1PCS
 Recording Rate: 100 f/s(PAL),120 f/s(NTSC)
 Compression format:Software capture
 System Support: Windows 7,windows 2000 or Windows XP, Windows Vist
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