These HDMI Converters will turn video and audio signals of all kinds into an HDMI output. For use with Plasma and LCD TVs you can convert VGA and Stereo RCA inputs into a HDMI signal. You can even convert different video formats including HDMI, DVI and Component (red, green & blue) into a single HDMI output. They work similarly to an HDMI splitter, but any type of input is acceptable. Some models have a remote control included to switch inputs easily. Reverse models are also available, which will turn an HDMI input into a VGA, Toslink, or 3.5mm output. These products are typically useful for connecting older electronics to newer TV models or projectors that may not have the proper receiving plugs.