... 1-Channel USB Video Adapter Features USB 2.0 interface, transmission rate up to 480Mpit/s, 48 times faster than USB 1.1 interfaceFluency video ... saturation, contrast, Gamma and so on advanced digital video control functionBuilt-in sensitive microphone for voice communication through ... LEDs auto turn on in dark USB VIDEO ADAPTER SPECIFICATIONImage sensor: 1/4 COMSImage element: 720H x 576V elementDisplay ...