RCA connector cables are a bundle of 2-3 cables including Composite Video (colored yellow) and Stereo Audio cables (red for right channel and white or black for the left audio channel).

Uses of RCA Connectors
The RCA cables are usually used for connecting your DVD player, stereo speakers, digital camera and other audio/video equipment to your TV. You can plug-in an RCA cable to the computer via a video capture card and this will let you transfer video from an old analog camcorder into your computer’s hard drive.