USB2.0 to 3 RCA video adapter cable, you can capture high-quality video and audio from DVDs, digital cameras, media devices, etc. and transfer it to a TV or PC. Please note that not all cameras or TVs support adapter cables. Before purchasing, please check whether the device supports it. The USB A to RCA cable is designed to connect and transmit (not convert) signals from the USB port to the RCA port. The cable is used as a signal transmitter, but not as a signal converter. Because USB carries digital signals,and RCA carries analog signals. In order for these two signals to communicate with each other, both input and output devices need to support signal conversion functions (encoding and decoding).If signal conversion is not supported,a signal converter is required. One to three standard RCA interfaces: red is the right channel, white is the left channel, and yellow is the composite video. This is a unidirectional transmission cable from USB A to RCA. Unable to use RCA to USBA. Th