The VP-727xl Universal Presentation Matrix Switcher / Scaler is a true multi- standard video to graphics scaler and seamless switcher with eight universal inputs comprised of five BNC connectors each of which can accommodate a composite video, s-Video (Y/C), component video (RGB/YUV), RGBS, or RGBHV signal. Input 1 and input 2 also accommodate HDMI inputs. It has dual scalers, one for the preview and the other for the program output. Dual scalers are required to do “live” seamless transitions from one source to another.