... optional 4.Resolution 420TV Model: ZS-15RCH USB Surveillance Camera Main SpecificationSensor1/4 CMOSMax Resolution640*480scanning systemNTSC/ ... 2008 server/XP/Win7 The first USB2.0 professional surveillance cameras in the world: 1. USB2.0 ... Support 4 channel above. 6. Professional monitoring intelligence analysis software, (Video, remote, playback, intelligent analysis and so on ...