Large window capture size: 1280*1024 Video mode: YUY2,usb 2.0 interface Transmissionrate:(320x240) 30F/S (1280*1024)15F/SBuild-in image compression * Automatic brightness adjustment Manual focus Computer should with usb 2.0 interface, Pentium4 1.7GHZ or higher CPU Windows 2000/XP operation system (not support WIN98,Over 10G free harddisc space.CDrom drive 256MB or higher memory Brightness: auto-detect Exposed control: auto-detect Support DirectX 9.0 VGA card