Wikipedia
YPbPr
is a color space used in video electronics, in particular in reference to component video cables. is the analog version of the YCC color space; the two are numerically equivalent, but YPP is designed for use in analog systems whereas YCC is intended for digital video.
cables are also commonly referred to as Yipper cables. is commonly called "component video" by manufacturers, but this is imprecise, as there are many other types of component video, most of which are some form of RGB.
Some video cards come with video-in video-out (VIVO) ports for connecting to component video devices.