Capture and convert an s video or composite video on your pc or mac as digital media the svid2usb23 usb 20 s video composite video capture cable offers an easy to use analog video capture solution enabling you to grab video from an s video or composite video source as well as the accompanying 2 channel rca audio to your mac or windows computer the cable connects to your desktop or laptop computer through usb 20 and is compact enough to fit in the palm of your hand providing a conve